Phantom of the Sea

Danny Fenton, the son of two Merpeople-hunters, has a somewhat normal life. At least, until he almost drowns in his parents' MerPortal, and becomes a half-human, half-merman hybrid... But little does he know, he's not the only one. Mer!Danny AU.

Reposted from FF.net!
https://www.fanfiction.net/s/12343654/1/Phantom-of-the-Sea