The Siren's Call: The Thalassa Cycle, Book 1

by M.K. Whyte

Eighteen-year-old Adriana always felt the ocean calling. She just didn’t know it was calling her home.

After a mysterious transformation in a hidden cenote, Adri discovers she’s no longer fully human... and the power inside her is anything but safe. When she’s taken to a remote marine institute against her will, she’s offered a choice: accept control, or lose everything.

But is she being protected? Or contained?

Caught between control and freedom, truth and manipulation, Adri must decide who to trust— and whether she can be trusted with the power she carries. Every choice has weight, and every action has consequences.

As the full moon approaches and her power intensifies, the stakes continue to rise. Because if she's wrong...

It could be someone's life.

A dark upper YA contemporary fantasy with a slow burn romance about identity, freedom, and the cost of power.

The Siren's Call is the first book in The Thalassa Cycle.

319 pages, Paperback

Published March 31, 2026

About the author

M.K. Whyte writes young adult fantasy and romantasy filled with ocean mythology, adventure, and heartfelt romance. Her stories explore themes of identity, freedom, faith, and the power of choosing love over fear. Guided by her Christian faith, she writes stories that blend wonder, hope, and meaningful moral themes. When she isn’t writing, she enjoys cooking, swimming, traveling, and spending time with her husband and two children. She is the author of The Thalassa Cycle, beginning with The Siren’s Call.