According to Jennings'

The boys at Linbury Court Preparatory School are eager to speed up the progress of space travel, and none more so than Jennings, whose first task is to find a suitable helmet. But is it really a good idea to take a dome-shaped glass-case, which previously housed a stuffed woodpecker, and place it over his head? Petrified paintpots! Jennings and Darbishire's luck is in when they hitch a ride with an international cricketer, and could it be that they've done something right for once when they attempt to apprehend a suspected burglar? Bat-witted clodpoll!

According to Jennings is one of a series of books by Anthony Buckeridge which grew out of a popular series of radio plays for the BBC's Children's Hour. Published between 1950 and 1989, and known for Buckeridge's inventive schoolboy slang ("fossilised fish hooks!," "crystallised cheesecakes!," and others) these books were translated into several languages and were favorites among a vast assortment of kids all over the world. Sometimes described as "Harry Potter without magic, but funnier," and "P.G. Wodehouse for kids," you'll want to check out the other titles in this series available from Post Hypnotic Press.