When Walrus escapes the zoo with his new friend Penguin, their adventures are twice the fun!In this sequel to the acclaimed WHERE'S WALRUS?, author Stephen Savage doubles the fun when Walrus escapes the zoo with his mischievous pal, Penguin. Will the zookeeper find them? Or will these clever runaways stay one step ahead disguised as subway riders, baseball players, and even grand opera performers? Hiding in plain sight, they elude the clueless zookeeper until a fly ball at a baseball game leads Walrus and Penguin to a chance encounter with surprising results!