Hugo, Maria, and Sarita enjoy spending time with their abuelos. And they in turn enjoy teasing their grandchildren with adivinanzas, little riddles that make the children giggle and smile even while leading them to think about the world in new ways. So when Grandpa begins to reminisce about his own father, and about the watermelons they raised long ago, the three youngsters recognize yet another curious adivinanza in the telling. Together author Mary Sue Galindo and illustrator Pauline Rodriguez Howard present a delightfully sweet (even juicy!) tale--a story that also carries the seeds of family tradition for readers to plant and cultivate in some future summer.