"Brothers Spencer and Vincent live happily in the sea together ("Spencer was a jellyfish. Vincent was also"), singing their favorite brotherly song, until one day a "wave of superior magnitude" sweeps Vincent away. Since jellyfish have very little power of propulsion, Spencer can't catch up to him, so he's helped by his friend Horace the whale and guided by other denizens of the sea until he finds Vincent and, with Horace's help, saves him from stranding on the sandy beach. The text is deliberately silly, the brotherly song a wonderful opportunity for performance absurdity, and the humor self-knowingly arch; while the self-conscious tone threatens to overcome the story at times, the jellyfish-real details, such as Spencer's limited movement, weirdly and satisfyingly ground the story. Dove's digital and watercolor illustrations, usually full bleeds of the ocean and its prettied-up inhabitants, lean toward graphic art in their focus on cuteness, and they give the sea world a pleasing rhythm of filtered light and fronds of plants and make freckled, redheaded Vincent sympathetic in his plight. Older kids and younger ones will enjoy this at different levels, so it's easily shareable with sibs of different ages, and they'll be delighted to join in on the goofy brotherly song.".