The unexpected appearance of a humpback whale alters a marine biologist's life, forced to race to preserve the message of its mysterious song.

Douglas Carlton Abrams is the nationally bestselling author of The Lost Diary of Don Juan, which has been published in thirty languages. He writes fact-based fiction and did extensive research for his new novel, including swimming with and recording humpback whales, meeting present-day whalers, and cage diving with great white sharks. Previously an editor at the University at California Press and HarperCollins, he is the cofounder of Idea Architects, a book and media development agency.