Song is a nobody --- just a food delivery worker from a village in Northeastern China --- but her son, River, is a little wonder. At the age of four, he toddled to a piano and tapped out his favorite song. At eight, he mastered Liszt's three Liebestraume. At 10, he blazed through the complete set of Chopin's études. And at every step, Song is there to light his way --- until finally, at the age of 11, River is invited to study with a preeminent teacher in Beijing. But in the chaos of Beijing Railway Station, Song faces every mother's nightmare. She loses her grip on River’s little hand and is unable to find him after a desperate, harrowing search. Over the next days, weeks and, eventually, years, Song and River fight to forge a path back to each other as they carve out new lives that carry them farther apart.

Walter Lavender Jr. is a master of finding. A wearer of high-tops. A maker of croissants. A son keeping vigil, 12 years counting. But he wouldn’t be able to tell you. Silenced by his motor speech disorder, Walter’s life gets lonely. Fortunately, he has The Lavenders, his mother’s enchanted dessert shop, where marzipan dragons breathe actual fire. He also has a knack for tracking down any missing thing --- except for his lost father. So when the Book at the root of the bakery’s magic vanishes, Walter, accompanied by his overweight golden retriever, journeys through New York City to find it --- along the way encountering an unforgettable cast of lost souls.