The Riddle of the Frozen Fountain — Carolyn Keene

Exciting adventures come to the two lively young Dana sisters when they undertake to solve a mystery at Starburst School, where they are students.

It all starts when Professor Crandall receives an anonymous note warning him not to remove the valuable Cellini bronze fountain that he has just purchased from the old Price estate nearby. While tracking down the writer of the threatening note, Louise and Jean courageously face danger as they become deeply enmeshed in a chain of puzzling events. The sinister actions of a large blond woman, phantom ice skaters on the school pond at midnight, and a mysterious riddle further complicate the Danas' sleuthing activities.

How Louise and Jean solve this baffling mystery, and finally see the beautiful fountain safely installed on Starburst's campus, will thrill all readers.