Pigs Make Me Sneeze! (Elephant & Piggie, #10)

Gerald is careful. Piggie is not.<br/>Piggie cannot help smiling. Gerald can.<br/>Gerald worries so that Piggie does not have to.<br/><br/>Gerald and Piggie are best friends.<br/><br/>In Pigs Make Me Sneeze!, Gerald believes he is allergic to his best friend! Will he have to stay away from Piggie forever?