Helen Plum Library

After being shrunk by a shrinking machine and ending up on a dog having a bubble bath, Alexander, his cousin Judy, and a tiny robot try to survive encounters with insects, soapy bubbles, and bathtub and toilet drains

Andrew, his cousin Judy, and Thudd the robot, having been shrunk by a shrinking machine, encounter many terrifying creatures, including Mrs. Scuttle, as they try to reach the Atom Sucker before it explodes

Still trying to stop the evil Dr. Kron-Tox, Andrew, his cousin Judy, Thudd the robot, and Beeper find Uncle Al in the Ice Age, where they encounter prehistoric animals, birds, and people

When Beeper accidentally releases the escape hatch to the Time-a-Tron, the time travelers must protect themselves from the world's most fearsome creature, Tyrannosaurus rex

Lost in an Australian rainforest, Andrew, Judy, and Thudd the robot, who are still the size of insects, must evade Rhinoceros beetles, tarantulas, flesh-eating plants, and a host of other threats as they make their way toward the village where Uncle Al will meet them

Still reduced to the size of insects, Andrew, Judy, and the robot Thudd go to a pond, where they encounter dragonflies, moss animals, and fierce larvae in an attempt to learn why frogs are disappearing throughout the world