Assassin's Mate. Genetically Altered Humans, #9

He'd die to protect her. She'd kill to protect him. Zealish has finally found his mate-only to wake in the hospital to find out he was dreaming. The whole thing-sneaky caresses, possessive touches, caring for the one person meant to be his and his alone-vanished. All of it, a figment of his wandering imagination. Angela will do anything to protect her twin sister. But when she meets Zealish, who loves Everly and can't have her, she refuses to be the substitution.
His second choice. The wrong twin. But when Zee leaves the city and comes after her to save her life? Angela wonders if she's the wrong twin after all.* The story behind the series: When futuristic Earth finds alien DNA and creates a new species of hybrids in hidden labs, Dr. Robyn Saraven helps the "creatures" escape. She uses her connections to establish their own city on Earth-Ground where they can learn, grow, and avoid the corruption and greed that created them.
*Other books in the Genetically Altered Humans Series:Book 1 - Xeno SapiensBook 2 - Earth-GroundBook 3 - SirenBook 4 - Beast's BeautyBook 5 - Almost HumanBook 6 - Forbidden TouchesBook 7 - Coveting AvaBook 8 - For EverlyBook 9 - Assassin's MateBook 10 - SextetBook 11 - Tempting TempestBook 12 - Falling For TranceBook 13 - Damaged GoodsBook 14 - Alien's BrideBook 15 - Dual LivesBook 16 - Reson's LessonBook 17 - A Mate For MaxBook 18 - Dragon's MateBook 19 - Fated "I binge read the whole series! I had to follow the author just in case she writes more ...
And I REALLY hope she does! There are so many other hybrids who have been introduced that NEED their own books."