"In Ha’s picture-book debut, soothing green and blue watercolors deftly mirror Walter’s watery habitat and his quiet nature. Quirky details and expressive eyes on the full cast—even when that is all readers can see of Walter—brim with warmth and personality. . . Emboldens readers with the knowledge that bravery is not the absence of fear."–Kirkus Reviews"Though he enjoys music and company, Walter, a crocodile, is painfully shy and prefers staying just below the surface. Until one day, he finds his voice to help his friend turtle from being tossed around by big birds. Expressive illustrations, almost translucent, evoke Walter’s watery world and the joy in finding one’s voice."–Reading Rockets, National Public Media"This is a stellar story, with so much charm. Readers and their grownups will love this tale with the message that trying to step out of one's comfort zone often reaps enormous benefits–the whole swamp is rocked by Walter's new ability to sing out loud. Isn't that what we want for all our children? . . . An essential purchase for all collections." –Youth Services Book Review