The Intergalactic Dating Agency promised a bride from this small, blue planet… As an ocean-dwelling Tritonyri warrior, Maelstrom Amyth sacrificed everything he loved in the centuries-long battle against the cruel and careless land-dwellers. So when he and his pod-brothers are sent to Earth to gently woo Intergalactic Dating Agency brides for his world’s survival, he’s definitely a fish-man out of water. She thought the seas were deep and dark and dangerous, but then she looked to the Big Sky above… Ridley Blake grew up in landlocked Iowa dreaming only of the ocean, but she washed out of Navy SEAL training after nearly drowning during a panic attack that left her with thalassophobia—the fear of deep water. She figures she’ll never dive again, until she is summoned to the middle of Montana under mysterious circumstances. But the troubles they both left behind have bigger teeth than they knew, and now Mael and Ridley have to sink or swim together...

The Intergalactic Dating Agency promised him a bride from this small, blue planet… With her allergy to water—water, that keeps everything on Earth alive—getting worse every day, reclusive billionaire heiress Marisol Wavercrest assumes she is going to die. So when she's offered one chance to survive, she has to take it. Except that chance will take her to another world that's nearly 100% covered by water in the company of an alien merman...who claims she is his fated mate. As commander of the western fleet on Tritona, Coriolis Kelyre fought long and hard against the cruel land-dwellers who poisoned the seas. When he's given one last task after the war—to take an alien bride to help save his world—he'll do what he's told, just as he's always done, even if the bride he's sent to retrieve makes him question everything he's sacrificed. Their predestined union is supposed to save a fragile planet, but a perfect storm is brewing between the enemies seeking to tear them apart and the tidal wave of their rising desire.

If Tritona’s war is over, who feeds the forgotten sharks of war? Designed and trained to be a war-torn planet’s merciless killing machine, Sting was sent to the deeps when the battles ended. But the end of the fighting doesn’t always mean peace. Then one of the Wavercrest women from Earth goes missing, and he’s tasked with finding her. But how can this one small mission soothe the monster he was made to be? She thought the seas were deep and dark and dangerous, but then she looked inside… Lana Wavercrest has been running for what feels like forever. She thought she’d finally found her home on a faraway ocean world…only to discover that her heritage—the same unnerving powers that ruined her life on Earth—is considered a curse on Tritona too. Is there nowhere in the universe she can be herself? But when Tritona’s enemy returns, they will have one last chance to decide the fate of worlds—and their lonely, drifting hearts.