This is "Boonie Doon" by C.M. Braeme, in a paperback edition published by the Arthur Westbrook Company circa 1910 (no publication date stated). This classic "dime novel" was issued as #73 in Westbrook's All Star Series. Condition of this paperback is about Very Good Minus; the spine shows some wear to the head and foot, but the title information is attached and legible. The binding is still pretty tight, and the cover is bright, showing some small chips and tears. The initial page shows some pencil marks and a crease at the upper corner, and the paper shows expected age toning. The book is enclosed in a mylar bag for protection. Overall pretty nice condition for a paperback that is over 100 years old! Please see my other vintage paperback listings.