Title: Professor Puffendorf's secret potions
First published: August 1992
Description: While Professor Puffendorf is away, Slag breaks into her top-secret cabinet and decides to do a little experimenting of his own, on Chip the guinea pig.
Subjects: Science, Juvenile fiction, Picture books for children, Fiction, Inventions, Inventors, Children's fiction, Science fiction, Guinea pigs, fiction, Fantasy fiction
LC classification: PZ7.T986 Pr 1998