Third Warning: A Mystery Story for Girls: Classic Book Guide and Free Edition
Third Warning: A Mystery Story for Girls: author and translator credits, catalogue synopsis, subjects and links to the Gutenberg reading formats.

Third Warning: A Mystery Story for Girls is catalogued by Project Gutenberg with author credits for Snell, Roy J. (Roy Judson) (1878–1959).
Catalogue synopsis
Project Gutenberg supplies this automated synopsis of the opening text:
"Third Warning" by Roy J. Snell is a mystery story written in the late 1930s. The narrative centers around Florence Huyler and Captain Davie as they embark on a summer cruise to Isle Royale, only to be faced with a series of emergencies, including a raging forest fire threatening both the island's natural beauty and the lives of campers. Along the journey, the book captures youthful adventurous spirits, the theme of responsibility, and a mysterious antagonist that adds tension to the plot. The opening of the story introduces Florence and Dave aboard the motorboat "Wanderer", where they observe strange clouds on the horizon and become aware of a fire on Isle Royale. Florence’s thoughts reveal her deep concerns about their ill-fated venture to run a passenger service on the island, and her worries escalate upon learning of the advancing fire. As they head toward Siskowit Bay to assist a group of campers, tensions arise between Dave and a disgruntled passenger, hinting at underlying conflicts. The urgency grows as they encounter the fierce flames, showcasing the bravery of Florence and her companions as they prepare to battle against nature to save both the campers and their boat. The stage is set for a tale of courage and resilience against unexpected challenges.
Book and edition facts
- Title: Third Warning: A Mystery Story for Girls
- Author credits: Snell, Roy J. (Roy Judson) (1878–1959)
- Catalogue language: English
Catalogue subjects
- Isle Royale (Mich.) -- Juvenile fiction
- Motorboats -- Juvenile fiction
- Mystery and detective stories
- Superior, Lake -- Juvenile fiction
Gutenberg collections
- Category: Adventure
- Category: Crime, Thrillers and Mystery
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View the complete Gutenberg catalogue record. Project Gutenberg identifies this edition as public domain in the United States; that designation does not establish its copyright status in every country.
Source notes
Catalogue metadata is public domain and is supplied through Gutendex, which imports Gutenberg's machine-readable catalogue. The automated synopsis is source-supplied, not an independently verified review. Author dates above describe the credited people; no ebook release date is presented as the book's original publication date.


