Capturing a Unicorn by Eve Langlais

Will he betray or save the world’s only unicorn?
A novelist and journalistic investigator, Oliver is on a mission to expose the secrets of a clinic that dared to perform illegal experiments on humans. Against all laws and morals, there are doctors making monsters, and it has to stop. Humanity itself is at stake, which is why he must destroy the knowledge of their creation and eliminate any living threats.
Then Oliver meets Emma, a former patient, living within the ruins of the clinic. She’s sweet and gentle, pretty, too—despite the horn projecting from her forehead.
It seems Oliver has found one of the monsters, and she’s like nothing he imagined. Will he go through with his plan to eradicate those changed by Chimera’s secret, or save Emma for love?