said, pedalling faster so she was level with me. âBut he should be in the bus, working.â
We silently glided up her neighbourâs driveway and across the grass, then around the side of Sophieâs house. âWeâll leave the bikes here,â Sophie whispered, âso Dad wonât see them if he comes out of the bus.â
We slipped along the fence and around into the back yard.
âThereâs a spare key hidden here.â
Sophie rolled aside a rock that lay near the back door. Under it, poked into the ground, was a key. She pulled it out and dusted it off, then slotted it into the lock. The back door swung open.
We crept through the laundry and into the hallway. Sophie led the way toward her bedroom. We didnât take any chances,tiptoeing until the door of Sophieâs bedroom was shut behind us.
âPhew.â Sophie slumped down onto her bed.
I sat in the chair in front of her desk. From there, I could see the old yellow bus parked out near the street. The door was closed. Mr Knight was inside. We were safe, for now.
âSo where could he be?â Sophie asked finally.
âHeâs in the bus,â I told her.
âNot my dad â Michael ! He canât have just disappeared. Where has he gone?â
I shook my head. Who would want him? Mum and Dad werenât rich; they wouldnât be able to pay a ransom. The only reason anyone would kidnap him was because of me. But I wasnât going to suggest that again.
âItâs something to do with you,â said Sophie suddenly. âItâs because youâre a zombie.â
âA half zombie,â I corrected her, relieved she finally thought the same as I did.
Most people donât know thereâs a difference between a full zombie and a half zombie, but there is, and itâs a big one.
Full-zombie
A full zombie attacks people. Itâs driven by an uncontrollable instinct to kill. But a half zombie resists the urge to eat brains. Even though sometimes Iâve felt like doing it, I havenât attacked anyone. Yet. âI wonder why . . .â I began.
Half-zombie
The colour drained from Sophieâs face. âMaybe they want to turn him into a zombie too.â
The thought of Michael being turned into a zombie made me feel sick. He would be even more annoying! âWe canât let that happen!â
âThen we have to think. Where would they takeââ
There was a noise outside Sophieâs door. Then the handle turned and a voice said, âSoph? Is that you?â
Mr Knightâs head appeared around the door. âShouldnât you be at school?â
âI forgot my lunch,â said Sophie quickly.
âNo you didnât,â said Mr Knight. âI saw you put it in your bag.â
A look of panic crossed Sophieâs face. âItâs Michael,â she blurted out. âHeâs disappeared.â
Mr Knight frowned. âWhat do you mean?â
âWe donât know for sure,â I said quickly, wishing Sophie hadnât told him. âBut heâs not in class and I know he went to school this morning.â
Mr Knight smiled. âYou can both relax because Michael is here with me. Heâs out in the bus right now.â
My mouth dropped open.
âI rang the headmaster this morning,â Mr Knight went on, âand asked if one of the students was available for an interview. Itâs for my latest book. Didnât I tell you it was set at the school?â
I nodded. I was so surprised I couldnât speak.
âIâll take you guys to the bus and you can join us. The more kids I interview, the better.â Mr Knight disappeared into the hallway.
When he was gone, Sophie turned to me. âSo Michaelâs not missing after all!â
I couldnât believe it either. How did we get it so wrong?
Still surprised, we stumbled out to the front yard. By the time we caught up with Mr Knight, he was