This listing is for a Random House 1st printing paperback copy of The Book of Mystery Puzzles, a 1982 supplemental book from the Alfred Hitchcock and the Three Investigators series.  Except for the damage to the back cover, this book is in great condition.  None of the puzzles have been worked.  This book has been in my personal collection since 2003.  No Three Investigators collection is complete without this one.

Please check out my other listings for many more books from this series.