The Lost Ninja, by Jay Leibold, is book 113 in the Choose Your Own Adventure series of solo adventure game books that became a world-wide hit in the late 1970s and early 1980s.
This is a first edition, first printing copy of the book, published in the United States in 1991.
The book is in Good condition with light wear to the covers and edges, and only light creasing to the spine. There are some spots of foxing to the pages edges and some pages, but the book has no marked, torn, missing, or damaged pages (see photographs).