These Treacherous Tides Series by D.N. Bryn

The ocean is uncontrollable and dangerous. But to the sirens who swim the warm island waters, it’s a home more than worth protecting from the humans and their steam-propelled ships. Between their hypnotic voices and the strength of their powerful tails, sirens have little to fear. That is, until the ruthless pirate captain, Kian, creates a device to cancel out their songs... moreThe ocean is uncontrollable and dangerous. But to the sirens who swim the warm island waters, it’s a home more than worth protecting from the humans and their steam-propelled ships. Between their hypnotic voices and the strength of their powerful tails, sirens have little to fear. That is, until the ruthless pirate captain, Kian, creates a device to cancel out their songs. Perle was the first siren captured, and while all since have either been sold or killed, Kian still keeps them prisoner. Though their song is muted and their tail paralyzed, Perle’s hope for escape rekindles as another pirating vessel seizes Kian’s ship. This new captain seems different, with his brilliant smile and his promises that Kian will never again be Perle’s master. But he’s still a human, and a captor in his own way. The compassion he and his rag-tag human family show can’t be sincere… or can it? Soon it becomes clear that Kian will hunt Perle relentlessly, taking down any siren in her path. As the tides turn, Perle must decide whether to run from Kian forever, or ride the forming wave into battle, hoping their newfound human companions will fight with them. less

No one with half a brain would rob the jungle’s most notorious energy cartel—but their power-producing stones are the only thing that soothes Cacao’s mysterious pain, and after being banished from his homeland for similar thefts, the lonely naga is desperate enough to try. When his ramshackle thievery goes wrong, a chaotic escape leaves him chained to the cartel's prisoner: a self-proclaimed hero with a hidden stash of power stones so large that Cacao would never need to steal again... moreNo one with half a brain would rob the jungle’s most notorious energy cartel—but their power-producing stones are the only thing that soothes Cacao’s mysterious pain, and after being banished from his homeland for similar thefts, the lonely naga is desperate enough to try. When his ramshackle thievery goes wrong, a chaotic escape leaves him chained to the cartel's prisoner: a self-proclaimed hero with a hidden stash of power stones so large that Cacao would never need to steal again. He’s determined to get his hands on it, even if it means guiding the annoyingly smug, annoyingly valiant, and even more annoyingly beautiful hero back home. But their path runs straight through the mist-laden and monster-filled swamp that exiled Cacao, with scheming poachers and a desperate cartel leader on their tail. The selfish and the self-righteous can only flee together for so long before something snaps... Return to the These Treacherous Tide's steampunk-inspired world of mermaids and reimagined mythological creatures in this fast-paced, standalone adventure with an insult-slinging, opposites attract, hate-to-love romance between a grouchy thief and a sassy, self-proclaimed hero. less