Encyclopedia Brown and the case of the secret pitch /
by Donald J. Sobol ; illustrated by Leonard Shortall.
- New York : Puffin Books, 2007, c1965.
- 96 p. : ill. ; 20 cm.
- Encyclopedia Brown ; 2 .
Fifth-grader "Encyclopedia" Leroy Brown solves ten mysteries and, by putting the solutions at the back of the book, challenges the reader to do the same.