Book 59


Book 60


Book 61


Book 62


Book 63


Book 64


Book 65


Book 66

Panther Mystery

by Gertrude Chandler Warner

Published 1 January 1998
When the Alden children and their grandfather visit Everglades National Park in Florida to solve the mystery of a missing ranger, they discover that a panther provides a clue.

Book 67


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Book 69

The Aldens investigate when the arrival of several suspicious characters in Greenfield coincides with a mystery involving a popular boy actor.

Book 70


Book 71

While visiting a recent purchase of Grandfather's, a ghost town in the Rocky Mountains, the Aldens encounter a mystery involving a run-down motel and a woman who may be a ghost.

Book 72


Book 73


Book 74


Book 75


Book 76


Book 77


Book 78