Ollie and Moon are best friends, and Ollie loves surprising Moon almost as much as Moon loves guessing Ollie's surprises. Today, Ollie has the best surprise yet for Moon, and she can't wait to guess what it is! As they gambol through the streets of Paris, hints about the surprise accumulate every step of the way. Will Moon guess Ollie's surprise before they reach it? Tickled readers will be guessing right alongside Moon!