Wind Spell (A Stepping Stone Book Book 3) by Mallory Loehr

Three feathers fall out of the sky into the hands of Joe, Polly, and Sam. It’s clear that magic is touching their lives again when they see words written in the clouds—promising them the ability to fly! What more could kids wish for? But the threesome will soon find out that the power of flight is not only fabulously fun, but also deadly dangerous. . . .