Odilia and her four sisters rival the mythical Odysseus in cleverness and courage as they embark on their own hero's journey. After finding a drowned man floating in their secret swimming hole along the Rio Grande, the sisters trek across the border to bring the body to the man's family in Mexico. But returning home turns into an odyssey of their own.

Outsmarting mythical creatures, and with the supernatural aid of spectral La Llorona via a magical earring, Odilia and her little sisters make their way along a road of trials to make it to their long-lost grandmother's house. Along the way, they must defeat a witch and her Evil Trinity: a wily warlock, a coven of vicious half-human barn owls, and the bloodthirsty chupacabras that prey on livestock. Can these fantastic trials prepare Odilia and her sisters for what happens when they face their final test, returning home to the real world, where goddesses and ghosts can no longer help them?

Now in Spanish, the award-winning El verano de las mariposas (Summer of the Mariposas) is not just a magical Mexican American retelling of The Odyssey, it is a celebration of sisterhood and maternal love.