The Turret — Margery Sharp

The fabulous Miss Bianca has resigned, perhaps prematurely, as Madam Chairwoman of the Mouse Prisoner's Aid Society. In her honor an enchanting water picnic is held at the lily moat beneath a ruined turret in the park outside the city. While the band plays, the ever observant Miss Bianca discovers that someone is being held hostage in the old turret. It turns out to be the wicked Mandrake. No one, not even her dear friend Bernard, is the slightest bit inclined toward rescuing that scoundrel - in spite of Miss Bianca's conviction that he has reformed. Adventures fraught with danger follow as Miss Bianca, alone, pays a midnight visit to the turret to ponder Mandrake's penitence and make plans. Her plans come to include one boy scout, a precocious mouse named Shaun, and the magnificent stallion Sir Hector.