Percy is confused. When he awoke from his long sleep, he didn't know much more than his name. His brain fuzz is lingering, even after the wolf Lupa told him he is a demigod and trained him to fight with the pen/sword in his pocket. Somehow Percy manages to make it to a camp for half-bloods, despite the fact that he has to keep killing monsters along the way. But the camp doesn't ring any bells with him. The only thing he can recall from his past is...

When she incurs Neptune's wrath by finding a diamond ring buried under rocks in the ocean, Emily is put under a curse that will force her to choose to be either a mermaid or a human and split up her parents forever.

"In her fourth adventure, everything finally seems to be perfect in Emily Windsnap's life. Her family is together again, and she's free to spend time with her friends. But when the mer-town of Shiprock is threatened by construction, Emily and her family are charged by Neptune to bring humans and merpeople together. Before Emily knows it, she's back in Brightport, carrying out Neptune's orders, searching for missing sirens with Shona, sorting out her...

Emily is headed to a tropical island for a relaxing vacation with friends and family. And this time, Emily promises her best friend, Shona, there will be absolutely no adventure just plenty of fun. But somehow excitement always seems to find Emily, and before she knows it, she ends up on the other side of a powerful waterfall on a forgotten island no one else can get to.

Spending the summer in Maine with her grandfather, fourteen-year-old India Finch is still exploring her new healing powers as one of the merpeople, and still trying deal with the conflicts between the two Mer tribes--so when she and her friends find out that the Fire tribe is searching for a powerful weapon called Neptune's trident which they will use against humans, they decide that they had better find it first.

"Dangerous storms are brewing in the ocean, caused by the nightmares of Neptune, King of the Sea. Convinced that his dreams herald an approaching threat, Neptune sends half-mermaids Emily Windsnap and Aaron on a top-secret mission to the land of the midnight sun, an icy world of mountains and glaciers. As they search for the source of the trouble, Emily and Aaron uncover a mystery more dangerous than they ever imagined - along with Neptune's darkest...