Four children work to speed up their sled through trial and error in Hepner’s picture book.

Acee, Mia, Riley, and Tobias are ready for the annual toboggan race, but they want to give their sled a speedy edge. After brainstorming ideas, they decide to try bacon grease; it works, but it also attracts all the neighborhood dogs—so it’s “Back to the thinking porch.” The kids try crayon wax next, first coloring the bottom of the sled, then melting the wax to coat the bottom. After a test run, they decide the latter is the solution, and they apply a fresh coat for the race. Soon they’re racing down the hill—and across the finish line. This story of trying different ideas and not giving up highlights teamwork, with four children ready to work together (and not argue) as they pursue their goal. Hepner uses short sentences and only a few challenging words (tobogganamong them), making this accessible for emergent readers. Moore’s bright cartoon illustrations feature a diverse friend group with various skin tones. Some of their poses are repetitively reused on multiple pages, however; Acee’s position racing the sled, for example, is identical in three illustrations. The rainbow track left by the crayon wax, however, is inspired.

A fun, well-illustrated story about working together to make rainbows in the snow.