Sally Ann puts a letter to her best friend Lucy Jane in the mailbox, but a Stamp-Collecting Trollusk steals it before the mailman can pick it up. The story then follows the letter as it is snapped up by a Letter-Eating Bombanat, grabbed by a Bombanat-Munching Grumley, sucked up by a Wild-'n'Windy Typhoonigator, etc., etc. A great one for reading aloud with fun word choices including many author-created words. I also enjoyed Mayer's fun detailed illustrations.