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.

A young girl learns she's half mermaid and plunges into a scheme to reunite with her father in this entrancing, satisfying tale that beckons readers far below the waves.
For as long as she can remember, twelve-year-old Emily Windsnap has lived on a boat. And, oddly enough, for just as long, her mother has seemed anxious to keep Emily away from the water. But when Mom finally agrees to let her take swimming lessons, Emily makes a startling

...

Neptune, King of the ocean, sends half-mermaids Emily and Aaron to the land of the midnight sun to investigate the source of the dangerous storms brewing in the ocean.

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.

When Emily makes a wish on a magic stone, she gets a glimpse of what the future holds--and it's a disaster! She tries to make things right, but each trip through time takes Emily to a future where things turn out badly for either the humans of Brightport or the merpeople of Shiprock. Plastic pollutes the ocean, garbage overflows the landfills, and the two towns are no longer getting along. Emily realizes she can't save her hometown and the ocean alone,...

Emily Windsnap's best friend, Shona Silkfin, is a mermaid who loves to sing . . . but only when she is by herself. So when Shiprock School announces a talent show whose winner will have the honor of meeting King Neptune, everyone is excited to perform--except Shona, who is too nervous to sign up. But when Emily overhears her friend singing, she's amazed by Shona's beautiful voice. With Emily's encouragement, Shona decides to enter the talent show--and...