Caldecott Medalist,National Book Award Winnerand New York Times bestselling creator Dan Santat returns to Sidekicks! This expanded edition includes a brand-new cover and sixteen pages of a never-before-seen epilogue! Suit up for high-octane action and laughs! Captain Amazingthe hometown hero of Metro Cityis searching for a sidekick! Heroes near and far are auditioning for the partbut there’s four unlikely candidates heating up the competition. A doga cata hamsterand a chameleon — the adoring pets of Captain Amazing’s alter egoHarry — have all been honing their own secret superpowers. Wanting to spend more time with their beloved humaneach pet is vying for the coveted role. MeanwhileCaptain Amazing’s longtime nemesisDr. Havocis backand Captain Amazing can’t defeat him on his own. With the citizens of Metro City in dangercan the warring pets put their squabbles aside to save the day?!