In The Empty Envelope, Dink keeps getting envelopes in the mail addressed to "D. Duncan." But the letters inside all start with "Dear Doris" and don't make any sense! Josh and Ruth Rose think someone's playing a trick on Dink. But Dink is sure there's more to it than that, especially after Doris herself shows up and demands her letters!

F is for Falcon...

In The Falcon's Feathers, Josh discovers a nest of young falcons in the forest that he, Dink, and Ruth Rose start visiting every day. Until the morning they find it empty! Then the kids discover a wounded falcon with its wings clipped, and they know someone's up to no good. Can they figure out what's going on before it's too late to save the falcons?