Kirbi Fagan

Sent to Maine to spend the summer with her grandfather, India Finch has just learned that she is part-mermaid, and met her kin among the Ice Tribe, so when she finds out that someone is harming sea creatures she wants to help--but discovering the truth can be dangerous, especially when the threat comes from the Mer themselves.

In pursuit of a strange butterfly for her science assignment, Kelly gets lost in the woods, and with only a mason jar, a butterfly net, and a small lunch, she must figure out which direction will lead her back to the cabin and her friends--and somehow elude the black bear who has taken a disturbing interest in her.

Morgan, a sea witch, has a deep hatred for the merpeople whom she blames for her lover, India Finch's father, leaving her--she hopes to use a hurricane to destroy them, and when fourteen-year-old India warns the mer, Morgan summons a giant squid to attack India, India's grandfather, and any of the mer who get in the way.

Tony and his twin sister Andie are four-wheeling in the woods near their family cabin, when they are caught in a violent thunderstorm--then the sky turns really dark, and they realize a monster tornado is on their tail, and suddenly they are not sure whether it is safer to keep running, or find some place to seek shelter.

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.