Dr. Lalin, a marine biologist who has devoted her life to facts and science, must let her heart guide her into depths no one has dared to look.
When a mysterious sound signal from beneath the Andaman Sea leads her to Eryn, an Alpha siren and the last survivor of her kind it is a secret that could be humanitys greatest discovery.
But for Lalin, it is a single life she desires to protect amidst a storm of greed and pursuit.
What will she choose? The world she is responsible for, or the one person her heart cries out for.