ALA Booklist (Mon Apr 01 00:00:00 CDT 2019)

Convinced there's a shark waiting at the bottom of the pool, ready to eat her, young Lottie is afraid to swim. One day after a lesson spent sitting poolside, an enormous walrus appears. Gentle and lovable, Walter spends the week with Lottie, singing, reading books, enjoying fish fingers, and playing hide-and-seek. When Saturday rolls around again, Lottie finds she can now enjoy the pool with Walter there to encourage her. The author of Hurry Up, Alfie! (2016) and Florette (2018) offers a gentle story addressing a common childhood fear. Neither Mom nor Walter pushes Lottie to jump before she is ready, but Walter's friendship and singing ("Humbelly doo, lumbelly la, loopy loo!") help Lottie to take the plunge. Soothing gouache-and-pencil illustrations feature lots of white space, muted colors, and an eye for fine details. Human faces are almost expressionless, leaving readers free to focus on various pool toys, kitchen gadgets, and the amiable Walter. Pair with Valeri Gorbachev's No Swimming for Nelly (2018) to help ease the overly cautious into the water.

Kirkus Reviews

Lottie knows something no one else knows. Her mother and brother don't know. Her swimming instructor does not know, and the other children in swim class certainly don't know.There is a shark that lives in the pool. It wants to eat Lottie—only Lottie—and Lottie is not going to let it get anywhere near her. Most children have had moments when they've sat on the sidelines watching others laugh and play because they were too scared to just dive in, and that is precisely where Lottie finds herself. Lucky for her, Walter shows up just in time. He sings, they read books, play in bubbles, and even share the same favorite food. But when it comes time for Lottie to face her fears, can Walter truly help? Walter, as readers and Lottie see but her family may not, is an enormous walrus. Walker's soft and appropriately watery illustrations complement and extend her whimsical text, lending a dreamlike feel to the story. Readers will discern the shadowy, predatory shape of the shark below the surface of the water even as Lottie's classmates splash and play, and they will sympathize, and they will giggle at the depictions of Walter's huge bulk in Lottie's tidy urban home while believing that Walter will protect her. Lottie, her mother, and her brother have light-brown skin and black hair.A quiet book about making a giant leap. (Picture book. 3-5)

Publishers Weekly (Fri Oct 06 00:00:00 CDT 2023)

Lottie firmly believes there is a shark lurking in the pool where she-s supposed to be taking group swim lessons. What-s more, the shark, whose menacing blue-gray body seems to have materialized from the murky depths, has very specific tastes: it -didn-t want to eat the other kids. It wanted to eat Lottie.- So Lottie perches on a bench in a bright red suit with a towel over her head each week, -watched, waited, put her shoes back on, and went home again.- When Lottie is told of an imminent pool party, she shivers, then conjures up an antidote to the shark: a big floppy walrus named Walter, who has a pretty impressive set of teeth himself. He gains Lottie-s confidence at home, sleeping on her top bunk and playing hide-and-seek, then ultimately coaxes her into the water with a call of -Humbelly doo, lumbelly la, loopy loo.- Quiet prose by Walker (Florette), a doll-like protagonist wearing oversize flippers, and soft, thoughtful watercolors give this story of facing one-s fears an intimate, confiding feel, with happy, hulking Walter adding just the right amount of gentle amusement. Ages 4-7. (June)