Ali Sparkes

Twins Danny and Josh are having a miserable time at camp when mad scientist Petty Potts arrives, armed with her new AMPHISWITCH formula, just in time to get another camper out of trouble.

Twins Josh and Danny continue following clues leading them to marbles filled with scientific code, despite the fact that mad scientist Petty Potts' REPTOSWITCH formula is having some very strange side-effects.

Twins Danny and Josh reveal to neighbor Petty Potts that they have been on a quest to find marbles containing secret code and soon find themselves--as geckos--in her new secret laboratory within the very pink Princessland.

While on vacation with their parents in Cornwall, twins Danny and Josh follow clues to another marble but find themselves trapped by the tide on a rocky island and the only way back is to use some pilfered REPTOSWITCH.

Mad scientist Petty Potts asks her neighbors, twins Josh and Danny, to help with her experiments and when her SWITCH spray turns them into flies, they are able to investigate the sabotage of their mother's garden.

When their sister, Jenny, is accidentally turned into a crane fly by Petty Potts' SWITCH spray, twins Josh and Danny must transform themselves, as well, and rescue her before she burns her legs off.

During an unwelcome visit, neighbor Tarquin unwittingly uses SWITCH spray to turn twins Josh and Danny into ants, then sets out with a magnifying glass to fry some bugs.

In present-day England, thirteen-year-old Ben and his twelve-year-old sister Rachel find two children who have been cryogenically frozen in a bomb shelter since 1956, and must prevent them from being discovered while helping them adjust to modern life.

Dax's fox instincts have never let him down before- he has to trust them. But before he can help Gideon and the others, he must first overcome his own rising panic and learn more about his shapeshifting powers.

"Josh ama a los bichos. Danny los odia. Pero luego de una visita a Petty Potts, una cientifica loca que tiene un suero extraordinario, los gemelos de pronto tienen ocho patas y pueden lanzar telaranas desde sus glandulas. Si Josh y Danny quieren volver a ser ninos de nuevo, tendras que sobrevivir a una tarde en su jardin. Es hora de empezar a correr por sus vidas. Dos hermanos, un suero y un mundo de problemas" -- While seeking their lost dog, Piddle,...