Book Review + Giveaway: Undercurrent (Under Book 2) by M.N. Arzu

It's been several months since merfolk were discovered by humans, but now the surface merfolk have another problem on their hands: someone is killing their kind, doing so in ways that shouldn't even be possible, and he's targeting the newest member of the Brooks family. Amidst dealing with the UN and trying to keep their identities secret from the press, the Brookses and their allies will have to...