Nixie and Grace have been best and only friends since preschool, but now Nixie must attend an after-school cooking camp while Grace spends her afternoons with classmate Elyse.

"Sixth grader Betsy is the one who informs her best friend, Lizard, that thousands of the world's languages are currently threatened by extinction; Betsy's mother is a linguistics professor working frantically to study dying languages before they are lost forever. But it is Lizard who, gripped by the magnitude of this loss, challenges Betsy, "What if, instead of WRITING about dying languages, like your mom, you and I SAVED one instead?" As the girls...