This puzzle is created from the text of Percy Jackson & the Olympians: The Sea of Monsters by Rick Riordan. Litographs puzzles are the best gifts for readers, teachers, librarians, grads, family, and friends who love books. Shop the Litographs store for holiday gifts, birthday gifts, and Mother's Day gifts. Every Litographs product is printed in Massachusetts, USA. Litographs puzzles are incredibly fun and challenging. Each puzzle comes together into a beautiful image based on the book. 500-piece puzzles are 15.75" x 21.25" and 1000-piece puzzles are 17.25" x 26.75". With only a few colors in each puzzle, you'll need to use the words themselves as hints to figure out what goes where.