Seventeen-year-old Lily, half-mermaid and half-human, has been living on land and attending high school. She develops a crush on a boy but is afraid to tell him of her true destiny as the ruler of the undersea kingdom of Thalassinia.

Unrequited love is hard enough when you're a normal teenager, but when you're half-human, half-mermaid Lily Sanderson, there's no such thing as a simple crush. Especially when your crush is gorgeous (and 100% human) Brody Bennett. The problem is, mermaids aren't the casual dating type - the instant they kiss someone, they 'bond' with them for life. When Lily's attempt to win Brody's love leads to an enormous case of mistaken identity, she finds herself facing a tidal wave of relationship drama.

The Deep is the third spellbinding story about Sapphy and Conor's adventures in the powerful and dangerous underwater world of Ingo. A devastating flood has torn through the worlds of Air and Ingo, and now, deep in the ocean, a monster is stirring.

Mer legend says that only those with dual blood — half Mer, half human — can overcome the Kraken. Sapphy must return to the Deep, with the help of her friend the whale, to face this terrifying creature. Her brother Conor and Mer friend Faro will not let her go alone!

I can't go back in the house. I'm restless, prickling all over. The wind hits me like slaps from huge invisible hands. But it's not the wind that worries me. It's something else, beyond the storm...

Sapphire and her brother Conor can't forget their adventures in Ingo, the mysterious world beneath the sea. They long to see their Mer friends once more. But a crisis is brewing far below the ocean's surface, where Saldowr, the wisest of the Mer, guards the Tide Knot. And soon both Sapphire and Conor will be drawn into Ingo's troubled waters.

Dark Life is a thrilling futuristic adventure set deep undersea. It follows the settlers of the world's first subsea settlement as they defend their homesteads against a brazen band of outlaws.

Set in an apocalyptic future where rising oceans have swallowed up entire regions, people live packed like sardines on the dry land left. The harrowing tale unfolds with underwater pioneers who have carved out a life for themselves in the harsh deep-sea environment, farming the seafloor in exchange for land deeds.

The story follows Ty, who has lived his whole life on his family's homestead and dreams of claiming his own stake when he turns eighteen. But when outlaws attack government supply ships and settlements, Ty, joined by a girl from Topside named Gemma, finds himself in a fight to save the only home he has ever known. Together, they venture into the frontier's rough underworld and discover dark secrets that threaten to destroy everything.