"Encyclopedia Brown No. 11 - The Case of the Exploding Plumbing and Other Mysteries" by Donald J. Leonard Sobol, illustrated by Leonard Shortall; published by Scholastic Book Services, 1974.

Soft cover, the sticker with the original 1970s price is on the front cover, 5.1/4" x 7.3/4"; 73 pages including solution at the end, tight binding, very good condition.

Donald J. Sobol (1924-2012) was an award-winning American writer best known for his children's books, especially the Encyclopedia Brown mystery series. His awards include a special Edgar Award from the Mystery Writers of America for his contribution to mystery writing in the United States, and the Pacific Northwest Library Association Young Readers’ Choice Award for Encyclopedia Brown Keeps the Peace.

"Leroy Brown is the "baddest" detective in the whole darn town. Idaville is the only crime-free city in the country, and Encyclopedia is the reason. Always a big fan of mysteries and detectives for any age, I have to rank Encyclopedia among my favorites. As a kid, I felt challenged to be more observant after Encyclopedia beat me to the answer over and over. I find not much has changed as an adult, and I love it! With several short cases in the book, younger readers will find it easy to keep up - none of that putting the book down and coming back to it a little lost about where you were in the story. Older readers will only find themselves disappointed that the book came to an end! That, and they were outsmarted by a kid." [a private review]

Leonard Shortall (1916-1989) is a published author and an illustrator of children's books and young adult books. Some of the published credits of Leonard Shortall include Encyclopedia Brown and the Case of the Secret Pitch (Encyclopedia Brown), Encyclopedia Brown Finds the Clues (Encyclopedia Brown), Mishmash and the Big Fat Problem.

US: Priority (c.2-4 days) --------- $12.50
Canada: 1st Class (c.2-4 weeks) -- $28.50
World: 1st Class (c.2-5 weeks) --- $42.50