Sold in a heated auction, Wally Mammoth is the first in a new four-book early readers series by Caldecott Honor-winner and three-time Geisel Award-winner Corey R. Tabor! A giggle- inducing story about friendship and cupcakes that is perfect for fans of Elephant and Piggie and Narwhal and Jelly.
The Wally Mammoth Series:
WALLY MAMMOTH AND THE SLED RACE
by Corey R. Tabor
Greenwillow, September 2025
(via Writers House)
Wally Mammoth lives in the Ice Age, where his huge heart warms even the coldest of days. And it has to be cold to have a sled race! Wally and his friends Otto the great auk and Wolf the (you guessed it!) gray wolf are all hot cocoa’d up and ready to compete. Otto and Wolf both really want to win, but sweet Wally is happy as long as everyone has fun.
Naturally, the competition goes downhill quickly. If the three friends careen toward the finish line in a giant snowball, how will they determine first, second, and third place? It doesn’t matter—there will be cupcakes for everyone regardless.
Wally Mammoth and the Sled Race is the first installment in a vibrant, laugh-out-loud, comic-inspired series about a group of unforgettable friends—created by friends themselves, illustrator Dalton Webb and Geisel Award–winning author Corey R. Tabor. The perfect choice for emerging readers, for developing visual literacy, and for sharing together.
Corey R. Tabor is the author and illustrator of award-winning books for children, including Mel Fell (Caldecott Honor) and Fox Has a Problem, Fox at Night, and Fox the Tiger.
Dalton Webb has worked in comics for years as a colorist, ghost artist, and font designer. This is his children’s book debut.

Huck and Loona love spending time together in the Great Northwoods. From cloud-watching to fishing, the two want to do everything together. When they realize they sometimes want to do different things or that there are some activities the other simply cannot do, they worry that their friendship is over.
Ferret strolled to school in style,
Bear knows that when the last leaf falls in the forest, whatever wish you make is sure to come true! Although it’s almost time to sleep, Mama allows Bear to watch and wait with his friends.
Doors are closing, lights are dimming. Strings are singing, it’s beginning.