Benjamin Pratt and the Keepers of the School Books in Order

Benjamin Pratt's historic waterfront school is scheduled for demolition to make room for an amusement park. A janitor's revelations draw him and his friend Jill into a secret struggle to protect the building from developers.

With their school's demolition approaching, Ben and Jill must decipher maritime riddles left by earlier Keepers. The janitor Lyman watches their investigation closely, determined to protect the development deal their discoveries could threaten.

Ben and Jill enlist Robert's spying skills as they fight to save Oakes School from demolition. Their opponent, janitor Lyman, follows their moves and introduces a vicious guard dog, making the approaching deadline more dangerous.

Ben, Jill, and Robert face a new obstacle in their effort to save the school: Lyman has recruited another threatening janitor. Even their growing team and newly discovered resources may not stop the men's plans.

Ben, Jill, and Robert have one last chance to prevent their school from being demolished for an amusement park. Janitors Lyman and Wally work to block them as the Keepers' fight reaches its decisive stage.