and boxes and Bunsen burners and test tubes and weird gadgets of every kind. A large mouse cage took up one corner. And in the center was a familiar square tent of plasticâthe S.W.I.T.C.H.ing chamber.
âWell,â Petty said, stepping out of the chamber and peering down at them in the dim light. âWhat do you think?â
Josh and Danny tried to tell her how impressed they wereâbut all that came out were those chirruping, clicking, and occasionally grunting noises.
âAaahâgeckos! The noisiest lizards there are!â Petty said, smiling at them appreciatively. âThe only reptiles that can make noises humans can hear, donât you know? Wellâone of you
is
a pretty boy!â she added. She knelt down and patted Danny on the head. He growled.
âBut I need you to S.W.I.T.C.H. back now so we can talk,â Petty said. And she swiftly squirted them with a bottle of antidote spray.
âAa-aaw!â Josh was disappointed. âI wanted to walk across your ceiling!â
âPlenty of time for that later,â Petty said.
âHow come he got to be all cool with spots and I turned into Barbie Gecko?â snapped Danny, folding his arms with a huff.
âWell, youâre very much the sameâitâs just a skin pigment issue,â Petty said. âAlthough it does suggest that the formula is a little unstable ⦠again.â She looked slightly concerned.
âUnstable? Thatâll be the third unstable S.W.I.T.C.H. youâve let us try!â squeaked Danny.
âThe second,â corrected Petty. âI didnât let you try the TurtleSWITCH, you may recall. You stole it and tried it entirely of your own free will!â
âBut the chameleon one was unstable too,â argued Danny. âAnd you let us try that even when your mouse ended up half-rodent, half-chameleon!â
âI donât know why you fuss so,â Petty said. âYouâre always fine in the end. Cutting-edge science canât be perfectly safe. I am a genius, and I must push the boundaries.â
âHmmm,â Danny muttered. âFunny how you always push the boundaries from a safe distance! Iâve never seen
you
try the S.W.I.T.C.H. out!â
âIâm much older than you. My bones are far too brittle,â Petty said with a dismissive wave. âAnywayâenough of all this. I wanted you to see my new labâand here it is!â
âWhy have it over Princessland?â Josh asked. âAre you trying to mess with our minds?â
âWhat did you expect? A hollowed-out, extinct volcano? I am now based here because it is the very last place that government spies would think of looking for me,â explained Petty. âAnd if they see me coming into the store, theyâll think Iâve just come to buy something pretty for a ⦠niece or something.â
Josh and Danny stared at Petty. They could not imagine her ever buying something from Princessland.
Petty held up a glittery pink bag carrying the storeâs name. âSee!â she said. âI always carry one of these out with me when I go.â
âWhatâs in it?â Josh asked.
âWadded-up tissues, dried calamine lotion, and chicken pox scabs mostly,â Petty said, peering into the bag.
There was a short silence and then a further pause while Josh and Danny massaged the rigid masks of horror off their faces.
âCome on, come onâover here!â Petty said. She led them to a corner of the room. There, in a pool of white light from a desk lamp, lay a microscope and several jars and boxes. âIâve been studying the marbles. Youâre rightâall three of them contain code for MAMMALSWITCH. I recognize my own brilliant work! I must have made the formula ⦠maybe years ago while I was still working for the government. And there are six marbles, the same way there were six BUGSWITCH cubes and six REPTOSWITCH