the top of it and pulled. Josh cringed. He was about to be found out, skulking behind the furniture in a neighborâs house, like a burglar.
âAAAARGH!â screamed Mrs. Sharpe. âRATS! RATS! THERE THEY GO AGAIN.â
Josh laughed silently with relief. Scratch and Sniff had run into the room, done a loop around the carpet, and run off out again.
Mrs. Sharpe and Tarquin hurried out after them. Josh leapt to his feet, jumped over the sofa, and gathered Momâs hedge birds into the trash bag. He slung it over his shoulder and then climbed through the front room window. He landed on the immaculate front lawn. With Mrs. Sharpeâs screams and Tarquinâs shrieks echoing from the house, he ran for the gate and made straight for home.
As he reached the corner of the road, he ran right into Danny.
âThere you are!â cried his brother. âWe thought youâd been swatted!â
Petty could be seen hurrying along the road behind Danny. âOh, thank goodness!â she puffed. âYouâve not been eaten! Nowâyou naughty boys. Donât ever do such a thing ever again!â
Josh and Danny turned and gave her a very hard stare.
âOh, all right,â she muttered, adjusting her spectacles. âI just like to pretend to be a normal grown-up sometimes . . . â
The camera memory stick slid into Pettyâs computer. It clicked and whirred.
âItâs very powerful but a bit slow,â said Petty, in the green light of the laboratory.
âUm . . . one thing Iâve been wondering about . . . â ventured Danny.
âYes, Danny?â said Petty. She pushed her glasses up her nose and jabbed at the keyboard.
âWhy arenât I stark naked?â
Petty blinked in surprise. âBecause itâs a little chilly today?â
âNoâI mean why arenât there a couple of piles of clothes in the plastic tent thingy where we got S.W.I.T.C.H.ed?â went on Danny. âWhen we turned into flies we should have flown right out of our pants, shouldnât we? And then, when we came back to being human, we shouldâve been stark naked!â
Petty laughed. âA good point, Danny. Itâs to do with how S.W.I.T.C.H. works. It actually changes all your cellsâ energy patterns. And everything thatâs connected to them at the point when you are sprayed gets changed too.â
âEnergy patterns?â repeated Josh.
âYes. All you need to know is that everything immediately connected to you changes with you. OK?â
Josh and Danny nodded, slowly.
âAnd a jolly good thing too,â added Petty. âA pair of identical streaking eight-year-olds is the last thing we need when weâre working together on a top secret project.â
âAre we . . . ?â said Danny, looking at Josh.
âWorking on a top secret project? With her?â Josh shrugged. He hadnât decided yet. No matter how exciting it was to think of being a dragon one day, it was just so dangerous. Only an hour ago, Danny had nearly been a spiderâs lunch!
There was a ping.
âAh!â said Petty. âHere are your photos, Josh.â
A series of photos opened up across her large screen. Joshâs finger. Joshâs eye. Danny, his head sideways, laughing hard at Josh for trying to take a photo with his new camera backward and sideways. Then pictures of Mom in the garden, a close-up of the rockery, Danny pretending to be a giant fly, Danny sitting up behind Jennyâs shoulder, Jenny hitting him with her rolled-up magazine . . .
And then, three really clear shots of . . .
âWhat?â squawked Josh. âOh no! Whereâs Mrs. Sharpe and Tarquin? Now weâve got no evidence!â
âYou must have messed up the angle,â muttered Danny. âWhat a waste of time!â
âNonsense,â said Petty Potts, leaning in close to peer at the photos. âYou got the hedge birds back for your mom,