The mystery began on a quiet Saturday morning with something so ordinary that I almost ignored it. I shuffled into the kitchen still trying to wake up, reached automatically for the coffee container, and frowned the instant I picked it up. It was much lighter than it should have been. When I removed the lid, only enough grounds remained to make a single pot. That couldn’t be right. I’d bought coffee only a few days earlier, and unless I’d developed the habit of drinking it in my sleep, there was no reasonable explanation for why it had disappeared so quickly.
John Mercer wandered into the kitchen a moment later looking exactly the way every person looks before their first cup of coffee. His hair had surrendered to gravity sometime during the night, his T-shirt looked as though it had been rescued from the bottom of a laundry basket, and he didn’t say a word until he’d wrapped both hands around his favorite mug. Watching him before coffee was a little like watching an old computer boot up. Everything happened eventually, just not with any particular sense of urgency.
“We’re almost out,” I said, holding up the container.
John barely looked at it. “Then we’ll pick up another one.”
“I just bought this.”
“When?”
“Three days ago.”
He thought about that for a moment before shrugging. “I’ve been drinking more coffee this week.”
There was nothing suspicious about the answer itself. In fact, it was probably the most sensible explanation available. The trouble was that John answered with the calm confidence of someone who believed the discussion was over, and my brain has never accepted calm confidence as a satisfactory ending to a mystery. If anything, it usually assumes the opposite.
Before I could continue the conversation, soft paws padded across the kitchen floor. Mr. Whiskers appeared from around the corner, stretched with theatrical enthusiasm, and settled himself beside the coffee maker. He didn’t ask for breakfast. He didn’t meow. He simply sat there, staring at the machine with the patient concentration of someone waiting for an important appointment. When he noticed me watching him, he gave one slow blink before looking back at the coffee maker.
I looked from the cat to John, then back to the cat again.
“You’ve been doing that a lot lately.”
John glanced over his shoulder. “Doing what?”
“Not you. Him.”
John followed my gaze to Mr. Whiskers, who remained perfectly still.
“He’s sitting down.”
“I know he’s sitting down.”
“So what’s the problem?”
“The problem is that he’s always sitting there.”
John poured himself a cup of coffee, took a long drink, and looked at the cat again as though seeing him for the first time that morning.
“I’ve honestly never paid attention.”
“Exactly.”
He frowned.
“Exactly… what?”
“That’s what makes it suspicious.”
John stared at me for several seconds with the expression of a man trying to determine whether he was still asleep. Without another word, he carried his coffee into the living room.
I watched him leave before turning back toward Mr. Whiskers, who had not moved an inch. Cats have a remarkable talent for making complete stillness look intentional. A dog sitting quietly looks relaxed. A cat sitting quietly looks like it’s evaluating the weaknesses in your security system.