The Underhills

"With their parents off on an urgent molar pickup, tooth fairy sisters April and Esme are ready for a cozy overnight at Grandma and Grandpa's teapot house by the airport fence. But when a tooth-collecting job comes in on Grandma's phone--a small girl in a red coat, arriving from Ghana, with a baby tooth in her pocket--the two wonder: could this be a job for April and Esme?" -- jacket.

juvenile

Bob Graham.