Rip Tide (Dark Life, Book 2)

Rip Tide (Dark Life, Book 2) by Falls, Kat. hardcover edition. ISBN: 9780545178433.

Dive deep into the vivid underwater world of Dark Life! Return to the subsea frontier with Ty and Gemma! The mysteries of the deep are deadlier than ever when Tys parents are kidnapped by the hostile and mysterious Topsiders known as the Surfs. With time running out for his parents, Tys desperation leads the two teenagers to the underwater underworld... and into an alliance with the outlaws of the Seablite Gang. But one mystery soon leads to another. How has an entire township disappeard? Why is the local sealife suddenly so aggressive? And can the Seablite Gang be trusted... or are Ty and Gemma in deeper water than they realize?