The Darewell Chums series typically revolves around a group of young friends, their adventures, and the mysteries they encounter. In "Frank Roscoe's Secret," the characters are likely to find themselves involved in an adventure or mystery while exploring the woods. The plot may involve secrets, discoveries, and the camaraderie of the Darewell Chums as they navigate through the challenges they face.Allen Chapman, a pseudonym used by various authors, created several series of juvenile fiction, including the Darewell Chums series, to entertain young readers with stories full of adventure, friendship, and excitement.While specific plot details for "Frank Roscoe's Secret; Or, the Darewell Chums in the Woods" are not available in my database, it's expected to feature a thrilling and wholesome adventure suitable for young readers, with the characters solving mysteries and enjoying outdoor escapades.