Flat Stanley's Worldwide Adventures, #5

Summary

Special delivery: Danger! When Stanley's mother needs the secret ingredient for a special recipe, Stanley mails himself to Mexico to track down its mysterious maker. But when a band of spies threatens to steal the secret, Stanley's simple trip becomes a race against an opponent that even a flat boy like himself can't slip past!!

©2010 the Trust u/w/o Richard C. Brown a/k/a Jeff Brown f/b/o Duncan Brown (P)2013 HarperCollinsPublishers