In this Level Three I Can Read! best friends Iris and Walter go on a highly anticipated class trip to the aquarium. Everyone in Miss Cherry´s class is excited about visiting the aquarium. Iris and Walter can´t wait to sit together on the bus and see scary sharks, shimmery angelfish, and--best of all--penguins. The aquarium is everything they had hoped for, until Walter gets lost! It´s a good thing his best friend, Iris, knows what to do! In the beloved Iris and Walter books, the two friends discover that everything is easier when you have a best friend by your side. This Level 3 I Can Read! is written for independent readers and includes challenging words and more complex themes and stories.