The Aqueous Solution

Carnalis: The Aqueous Solution is the first book in the Carnalis series. In it, the reader is introduced to the main four characters, the primary antagonist, and the world of inhumans and NIMA.

Official Description
When her best friend is murdered by a zombie, Pemberly Beltré embarks on a quest for revenge, attracting the attention of Seb Marschel, a government-issue monster hunter who is equal parts charming and insufferable. But after incurring the wrath of a monstrous creature even more fearsome than the undead, Pemberly is forced to go on the run with Seb's help. Together, the two tackle the case of a rabid mermaid smuggled into the suburbs of coastal Oregon, and in doing so, they begin to unravel the threads of an even more sinister plot.

Plot Summary
Somebody please write this. Please.

Trivia

 * This book is available to read online for free here
 * The featured inhuman species of this installment are mermaids, but zombies and popobawa also appear.