The Secrets of the Rock is the third book in the Fribble Mouse Library Mystery Series. While on a clean-up project in the park, Fribble discovers an old rock bearing a brass plaque that is so dirty that he can't read it. When he and his brother and visiting aunt clean up the plaque, they uncover several questions? For whom was the plaque a memorial? Who was the Handcuff King? Why had he made a trip to Cheddarville so many years ago? Why is there a line of music written on the plaque? While finding the answers to these questions, Fribble must use his best library skills. He also must get ready...

The Secrets of the Sea Chest is the fourth book in the Fribble Mouse Library Mystery series. It is spring when Fribble's family receives an invitation to come vacation at Great Uncle Skipper's house on the coast of Maine. Great Uncle Skipper also says he is mailing to Fribble his old sea chest that is filled with all kinds of secrets. It is also the time when Fribble must write a report on careers, in the present, past or future. Once Fribble receives and opens the sea chest and begins to examine its contents, he decides he will make his school report on sailors of the past. Fribble leans...