After betrayal rocks the foundation of their relationship, Australian Sentinel Gavin Cassidy and whale biologist Zoe Morgan call it quits. Gavin can’t forgive himself for shattering her trust, and being with the sexy rock star is killing Zoe. Literally. But there’s no time to talk it out. Gavin and the other Sentinels must find the door into the Dreaming and defeat the supernatural Fire Elementals—starting with Scarlet, the woman who set fire to his relationship with Zoe—before millions of humans are killed. Meanwhile Zoe, hoping to take her mind off her heartbreak, tries to focus on work, only to discover that her whales know more than she expected. Love and duty are powerful motivators, and alliances are formed in the most unlikely places in this final installment of the Just Breathe trilogy.