The goose's gold: When Ruth Rose and her friends, vacationing in Florida, discover that her grandmother is about to invest in a project to recover sunken treasure, they stumble upon evidence that the entire plan may be a fraud. The falcon's feathers: Josh and his two friends look for the person who stole a peregrine falcon from its nest. The empty envelope: Dink and his friends unearth the mysterious truth behind the envelopes incorrectly delivered...

The Deadly Dungeon--Dink's favorite mystery writer, Wallis Wallace, has invited Dink, Josh, and Ruth Rose for a sleepover, in a haunted castle! Will they discover who or what is haunting Moose Manor? |t 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...