Zig and Wikki in The Cow: Toon Books Level 3

Can cow poop help two friends patch up their friendship?

When alien pals Zig and Wikki lose their spaceship on Earth, their friendship is definitely in trouble. In order to get home, they must travel underground and through a cow, picking up fun facts about ecology (and picking fights) along the way. Nadja Spiegelman and Trade Loeffler's funny science-based easy-reader is packed with fast-paced adventure and facts about poop: what more could a young reader want?