Danger at Demon's Cove - PDF Digital Download Book - From Usborne Puzzle Adventure Books - 1988 Easily readable from your PC, table, phone, etc, or print out! Ex-library edition. Excellent puzzle solving adventures from my own childhood! Lighthouses! Pirates! Treasure! And a mystery on every page to get your young mind racing! 48 pages, full colour, and solutions to the puzzles at the very end. ********For best reading experience, read the book in "two page" view ******** Suits pre-teen to teens