told me.
This was a very convincing argument. I didnât want to be dead, so I was beefing up my memory. It had turned out to be far more work than Iâd expected. I had been pulled out of my regular classes and placed in an intensive memory immersion course. For hours each day, Iâd memorized random strings of numbers and decks of cards. My instructor, Professor Richmond, had walked me down the city streets and then peppered me with questions about everything Iâd seen: What model car was parked closest to the corner? What type of earrings had a mail carrier been wearing? How many people had failed to clean up after their dogs? It had seemedalmost impossible at first, but I was already getting better at it, picking up things I never would have noticed about my surroundings before. Like how everyone else at the zoo was dressed.
âWhy are you staring at those people?â Mike asked me.
I still needed a bit of work on not being so obvious, however.
âI thought I recognized them,â I said quickly.
Mike stopped walking near a park bench where an old woman sat (black overcoat, red earmuffs, big hairy mole on her chin) and fixed me with a hard stare. âHave you recognized a lot of people at the zoo today? Because youâve been staring at everyone weâve passed.â
âNo, I havenât,â I said, even though I had. It occurred to me that Mike had quite strong powers of observation himself.
âYou have so. Youâve been acting weird all day. Even weirder than usual.â
âWhat do you mean, âweirder than usualâ?â
Mike began ticking things off on his fingers. âThe last time you went to Adventureland Mini Golf, you took after some suspicious guy and ended up burning the whole place down. On the one day you were back at school with me, you beat up Trey Patterson and three of his buddies and then vanished. And the one time you told me to sneak onto St. Smithenâs to spring you for a party, I got tackled by acommando squad. They claimed it was only a training exercise, but I know that was a bunch of bull.â
âI realize that all seems kind of weird,â I replied. âBut thereâs a good explanation for everything.â
âYeah. Something strange is going on at that science school. And youâre wrapped up in it.â
âEr . . . ,â I said, and then had no idea what to add. Mike had caught me completely off guard by nailing the answer.
Mike waited for two other zoo visitors to pass usâa mother (heavy tan parka, hiking boots, librarian glasses) and son (blue Batman jacket, snow boots, a river of snot running from his nose)âand then whispered, âTheyâre experimenting on you, arenât they?â
Iâd been preparing myself to be accused of being a spy, so now I was caught off guard again. âWhat?â
âI mean, itâs a science school, but thereâs all this secrecy around it,â Mike explained. âSo whatever theyâre up to . . . itâs not kosher, right?â
âUm,â I said, not quite sure where this was going. âMaybe.â
âSo what do they do to you?â Mike asked, growing intrigued. âInject you with all sorts of weird chemicals to give you incredible martial arts skills one day and hyper-attentiveness the next?â
I was annoyed that Mike thought I was a human guineapig, but then I remembered what was known as âDelmanâs Law of Opportune Aliasesâ: If someone mistakenly assumes something about you, itâs much easier to simply let them believe it than to make up something else entirely.
So I said, âYes. Iâm a human guinea pig.â
âI knew it!â Mike crowed, so loudly he startled a passing zookeeper (gray hair, bushy mustache, coveralls smeared with what looked disturbingly like animal poop). Then he lowered his voice again and said, âThis explains everything.