I was making pancakes in the kitchen when I noticed something unusual about John Mercer’s backpack. It was sitting beside the front door, exactly where he’d left it the previous afternoon, except the main compartment was partially unzipped. Now, I realize that an open backpack isn’t generally considered an emergency, particularly in a household where John routinely leaves shoes in the hallway and coffee mugs in locations that defy conventional kitchen organization. Nevertheless, I distinctly remembered seeing him close the backpack before we went out yesterday. He’d been looking for his wallet, which had somehow ended up underneath a collection of charging cables, and I remembered him pulling the zipper shut before we left. This morning, however, there was a gap of approximately three inches along the top. I stood there holding a spatula, wondering whether someone had opened it while we were away.
I should explain that I wasn’t actively looking for anything suspicious. In fact, I’d spent the better part of the previous week attempting to stop investigating ordinary household occurrences after Pandora pointed out that my habit of treating misplaced objects like evidence in a criminal proceeding was becoming exhausting. Only yesterday, I’d spent an embarrassing amount of time examining her coffee mug because it had been placed on the counter instead of in the cupboard. I’d eventually discovered that John had moved it while emptying the dishwasher, which meant my original observation had been correct, even if the investigation itself had been entirely unnecessary. I’d taken that lesson seriously. Unfortunately, an open backpack seemed different from a misplaced coffee mug. A mug could be moved by almost anyone, but a backpack contained personal belongings, and personal belongings deserved a reasonable expectation of privacy. I wasn’t suggesting that anything terrible had happened. I was simply wondering whether something had happened at all.
John and I had gone out for lunch the previous afternoon, leaving Pandora at home for part of the day before she went out to run errands. We’d returned a couple of hours later, and I couldn’t remember anyone mentioning the backpack afterward. Mrs Jenkins had stopped by briefly that evening to ask Pandora a question about the neighborhood pet calendar, but she’d remained near the front door and hadn’t gone anywhere near John’s things. As far as I knew, nobody else had been inside the house. That should have settled the matter, except that I was fairly certain the backpack had been completely closed when we’d left. I glanced toward the living room, where Mr Whiskers was stretched across the back of the couch, enjoying a patch of morning sunlight. He appeared remarkably unconcerned about the possibility of unauthorized access to household property, although I suspected his understanding of personal ownership extended only to food bowls, favorite sleeping spots, and anything small enough to knock off a table.
I returned to the stove and flipped another pancake, but my attention kept drifting toward the hallway. The backpack wasn’t particularly expensive, and John had never treated it as though it contained anything valuable. Most days, it held his laptop, a few notebooks, charging cables, and an assortment of objects that seemed to accumulate without any apparent system of organization. Nevertheless, the idea that someone might have opened it without his knowledge bothered me. I considered whether Pandora might have moved it while cleaning, although she generally left John’s belongings alone unless they were blocking the doorway. There was also the possibility that John himself had opened it after we returned home and simply forgotten. That explanation was entirely reasonable, particularly given his recent difficulty remembering where he’d left a clean coffee mug. Unfortunately, reasonable explanations have a tendency to become less satisfying once you’ve noticed something that doesn’t quite fit.
John entered the kitchen a few minutes later, looking sleepy and wearing a T-shirt that appeared to have survived the night in approximately the same condition as its owner. He poured himself some coffee, inspected the pancakes, and asked whether breakfast was nearly ready. I told him it was, then casually mentioned that I’d noticed his backpack was open. He glanced toward the hallway and shrugged. “Probably forgot to zip it,” he said. I reminded him that he’d closed it before we went out yesterday. He considered this information while taking a sip of coffee, then suggested that he might have opened it again after we got home. I asked whether he remembered doing that, and he admitted that he didn’t. This seemed like a perfectly reasonable point at which to end the conversation, but I found myself asking whether anything was missing. John looked at me for several seconds before putting down his coffee. “Hal, are you investigating my backpack?” he asked. I informed him that I was merely pointing out a possible inconsistency. He sighed and told me that if I wanted to investigate something, I should investigate why the pancakes were getting darker.
I rescued the pancakes before they became evidence of my inability to multitask and carried breakfast to the table. Pandora joined us a few minutes later, followed closely by Mr Whiskers, who appeared to believe that the arrival of three people at the kitchen table constituted a formal invitation to receive additional food. We settled into breakfast, and I made a conscious effort not to mention the backpack. Unfortunately, John had no such reservations. He told Pandora that I’d apparently discovered another household mystery and was considering whether someone had tampered with his belongings. Pandora looked at me with the familiar expression she reserved for occasions when my imagination had begun operating without adequate supervision. I explained that I hadn’t accused anyone of anything and that I was simply concerned about the possibility that John’s backpack had been opened while we were out. She asked whether John had checked his belongings. I admitted that he hadn’t. She turned to John, who shrugged and said that everything was probably fine. Then she looked back at me and asked why I was more worried about the backpack than the person who owned it.
I considered this a surprisingly difficult question. John was clearly unconcerned, which suggested that either nothing unusual had happened or he possessed a level of emotional stability that I found difficult to comprehend. I was leaning toward the second possibility when Mr Whiskers suddenly jumped down from his chair and trotted toward the hallway. He stopped beside the backpack, sniffed the open compartment, and began pawing at the zipper. I watched him carefully, feeling the familiar sensation that accompanies the discovery of potentially significant evidence. Mr Whiskers had demonstrated an impressive ability to draw attention to household objects, although his motives were generally less noble than I initially assumed. He’d led me to his missing toy mouse, directed my attention toward hidden treats, and recently managed to turn an innocent afternoon on my lap into a neighborhood spectacle. Still, the fact that he was now examining the backpack seemed worth noting. I pointed this out to Pandora, who reminded me that cats investigate bags because bags often contain interesting smells. I acknowledged that this was possible but continued watching.
Mr Whiskers inserted one paw into the partially open compartment and began fishing around with extraordinary determination. John glanced over from the table and told him to leave the bag alone, but the cat ignored him completely. Instead, he hooked something with his claws and pulled, causing the backpack to tip slightly toward him. I stood up, concerned that he might damage John’s laptop or scatter its contents across the floor. Before I could intervene, Mr Whiskers withdrew his paw and revealed a small piece of crumpled paper. He batted it across the hallway, chased it toward the living room, and pounced on it with the enthusiasm of a professional athlete participating in an event for which nobody had purchased tickets. John stared at the paper, then at the backpack, and muttered something under his breath. I asked what the paper was, and he told me it was probably an old receipt. This seemed plausible, although I noticed that he was suddenly considerably more interested in the contents of his bag than he’d been five minutes earlier.
I followed Mr Whiskers into the living room and retrieved the paper before he could push it beneath the couch. It was indeed a receipt, although the printing had been partially obscured by several enthusiastic punctures from feline claws. I could make out the name of a local shop and a date from the previous afternoon, but the rest was difficult to read. I handed it to John, who had followed me into the room, and asked whether he’d bought something after lunch. He looked at the receipt, smiled awkwardly, and said that he might have stopped somewhere on the way home. I found this interesting because we’d returned together, and I didn’t remember stopping at any shops. John explained that he’d gone back out later while I was busy in the kitchen. I nodded, accepting the explanation, although I couldn’t help noticing that he seemed unusually reluctant to elaborate. Pandora appeared in the doorway, took one look at John’s expression, and began smiling. I suddenly had the distinct impression that everyone understood something except me.
John finally admitted that he’d stopped at a small shop to buy a few things for a project he was working on. This was not particularly surprising, since he frequently occupied himself with little projects that involved tools, electronics, or objects whose purpose wasn’t immediately obvious. What surprised me was his reluctance to discuss the purchase. I asked whether he’d bought anything interesting, and he said it was nothing important. Pandora laughed quietly and told him that he might as well explain because I was unlikely to stop wondering until he did. John looked at her, then at me, and finally sighed. Apparently, he’d purchased a small bag of cat toys and a packet of treats for Mr Whiskers, intending to surprise him later that evening. He’d hidden the items in his backpack when he returned home, but Mr Whiskers had apparently detected the smell almost immediately. John had opened the bag to check that everything was still there, then forgotten to zip it shut.
For several seconds, I simply stared at him. The explanation was so ordinary that I almost felt disappointed, although I recognized that disappointment was probably not an appropriate response to learning that nobody had interfered with my roommate’s belongings. John explained that he’d planned to give Mr Whiskers the new toys after dinner, but the cat had spent much of the evening hovering around the backpack, sniffing it whenever anyone wasn’t looking. At one point, John had caught him attempting to climb inside, which was why he’d moved the bag closer to the door. He’d apparently checked the contents before going to bed, then become distracted by something on his phone and left the zipper partially open. The mysterious crease I’d noticed in the fabric was simply the result of the bag being stuffed with a package of cat toys. There had been no intruder, no unauthorized access, and no evidence of anything more sinister than a man attempting to surprise a cat who was considerably better at detecting treats than anyone had anticipated.
Pandora found the entire situation hilarious, particularly when John admitted that Mr Whiskers had apparently been trying to get into the backpack for nearly twelve hours. She pointed out that the cat had probably known exactly what was inside from the moment John brought it home. John reluctantly agreed, explaining that Mr Whiskers had followed him through the hallway the previous evening and spent several minutes sitting beside the bag. I looked down at the cat, who was now batting the crumpled receipt across the floor with an expression of absolute satisfaction. He had apparently discovered the evidence, extracted it from its hiding place, and turned it into a toy without requiring any assistance from the rest of us. I considered whether this made him a particularly talented investigator or simply an animal with an excellent sense of smell and a complete disregard for other people’s property. Given his history, I suspected both explanations contained elements of truth.
John eventually retrieved the new toys from his backpack, deciding that there was little point in maintaining the surprise any longer. He produced a small stuffed fish, a feather wand, and a bright green ball with a bell inside. Mr Whiskers immediately abandoned the receipt and approached the collection with the focused attention of someone evaluating a major investment opportunity. He sniffed the fish, tapped the ball with one paw, and then seized the feather wand before John had even finished removing it from the packaging. Pandora laughed as the cat dragged the feathers across the living room, occasionally stopping to look back at us as though daring someone to interfere. John seemed pleased that his purchases had been appreciated, although I noticed that Mr Whiskers showed considerably more enthusiasm for the crumpled receipt than for the expensive stuffed fish. I pointed this out, and John informed me that cats were impossible to shop for. Pandora agreed, adding that the cardboard packaging would probably become his favorite toy before the afternoon was over.
Once the excitement had settled down, I returned to the kitchen to clean up breakfast. John carried his backpack upstairs, presumably to prevent Mr Whiskers from conducting any further unauthorized searches, while Pandora helped me put away the dishes. She asked whether I was satisfied that the mystery had been resolved. I told her that I was, although I pointed out that my original observation had been correct. Someone had opened the backpack after we’d returned home, and the zipper had been left partially undone. Pandora acknowledged this but reminded me that the person responsible was John himself, which made the entire matter considerably less interesting than I’d initially imagined. I agreed, reluctantly, that she had a point. It occurred to me that I was developing a rather unfortunate habit of noticing small details correctly and then constructing explanations that bore almost no resemblance to reality. Perhaps the problem wasn’t my observational ability but my tendency to assume that every unusual detail required a dramatic explanation.
Later that afternoon, I found Mr Whiskers sitting beside the empty cardboard packaging from John’s new toys. The stuffed fish had been abandoned beneath the couch, the green ball had disappeared somewhere behind a chair, and the feather wand was lying untouched on the rug. The cat, however, was completely absorbed in trying to fit himself into a cardboard box that was clearly too small to accommodate his considerable dignity. I watched as he squeezed one front paw inside, followed by his head, then attempted to fold the rest of himself into the remaining space. The box tipped sideways, and Mr Whiskers emerged looking mildly offended by the laws of geometry. I considered helping him, but decided that he seemed perfectly capable of conducting his own experiments. After several more attempts, he gave up and settled on top of the flattened box instead, apparently deciding that ownership didn’t require successful entry.
I stood there for a moment, reflecting on how much trouble a partially open backpack had caused me. I’d spent most of the morning wondering whether someone had entered our home, when the actual explanation involved a bag of cat toys and a roommate who’d forgotten to close a zipper. John had been mildly embarrassed, Pandora had enjoyed a good laugh, and Mr Whiskers had acquired several new possessions while demonstrating that he could turn an ordinary receipt into the most entertaining object in the house. I decided that perhaps the best approach to future mysteries was to begin with the simplest explanation and resist the temptation to build an elaborate theory around it. This seemed like a reasonable and achievable goal. Then Mr Whiskers suddenly lifted his head, stared toward the hallway, and trotted off with the purposeful expression of an animal who’d just remembered something important. I watched him disappear around the corner and briefly considered following. Instead, I returned to the kitchen and poured myself another cup of coffee. Whatever he was planning, I decided, it could remain a mystery for once. Besides, if it involved another backpack, I was fairly certain John would appreciate being the first person to investigate.