My Sister Wanted My Three Mates. Her Serpent Wanted Me.

In a world remade by the apocalypse, Evelyn took in three dying shifters and gave them a chance to live. In return, they used her to get closer to the sister she favored most. Hurt and furious, Evelyn made a cold decision: she traded all three of them for Silas, her sister’s untamable serpent. But the outcast everyone fears only wants Evelyn—and he may be the little black snake she once saved. Now her former mates are coming back, her sister is after what she has, and Silas won’t let anyone take her away.