The Hamlet chronicles ;

A giant spider and several other odd creatures from the earlier books in the Hamlet Chronicles return as the small Vermont town celebrates a grammar school graduation, Miss Earth's wedding, and the Fourth of July.

At a Vermont elementary school, April Fools' Day takes on a sinister tone when a teacher goes missing and several suspects emerge, among them the teacher's fiance and a missing mutant chick.

The students of Miss Earth's class in rural Vermont experience an eventful spring when they become involved with a bullying new student, a competitive egg hunt, and genetically altered chicks.