The fifth book, "Andrew Lost Under Water", begins when Andrew and Judy are at Hawaii with Uncle Al. They accidentally lock themselves inside the "Water Bug", a car that Uncle Al turned into a submarine. As they explore underwater, they soon discover that a giant squid is being pursued by a villain called Soggy Bob Sloggins and his robot parrot BURPP (Bob's Ultra Robot Parrot Partner) who wants to capture it. In the sixth book, "Andrew Lost in the Whale", they are swallowed by a whale and escape by crawling through its digestive tract, including the stomach, intestines, and anus. In the seventh book, "Andrew Lost on the Reef", Andrew and Judy explore a coral reef, and in the eighth book, "Andrew Lost in the Deep", they travel to the deepest part of the ocean. At the end of the book, they discover that Soggy Bob Sloggins is not really the villain, but was hypnotized and forced to do evil. They discover that the real enemy is the man who hypnotized him, Doctor Kron-Tox. Illustrated by Jan Gerardi (2004–2005). The ninth book, "Andrew Lost in Time", begins when Andrew, Judy, Thudd, and Uncle Al are in a cabin in Montana, when Doctor Kron-Tox kidnaps Uncle Al and sends him back in time to the ice age. Andrew, Judy, and Thudd run into the "Time-a-tron", the time machine that Uncle Al invented, and go back in time to rescue him. They accidentally go back too far and end up three minutes after the Big Bang. They quickly go forwards in time. In the tenth book, "Andrew Lost on Earth", they watch the Earth being formed. They stop in the Carboniferous period and rescue a boy named Beeper, the nephew of Doctor Kron-Tox, who had been stranded there by his uncle. In the eleventh book, "Andrew Lost with the Dinosaurs", they stop in the Late Cretaceous period and rescue Doctor Winka Wilde, a woman who was stranded just before the extinction at the end of the Cretaceous period. In the twelfth book, "Andrew Lost in the Ice Age", they make it to the ice age. There they rescue Uncle Al, and stop Doctor Kron-Tox from building a theme park with animals he captured. Then they finally return to the present time. Illustrated by Jan Gerardi (2006–2007). The thirteenth book, "Andrew Lost in the Garbage", begins when Andrew, Judy, and Thudd are shrunk to about an inch tall (not as small as in the "Atom Sucker" incident) and thrown out with the garbage due to an accident with Andrew's newest invention, the "Goa Constrictor", and his classmate, Jeremy Bogart.