All of my books are written for adults and contain mature content including graphic sex and violence. Scroll down for a non-comprehensive list of possible triggers (which might be spoilery): 

Demon Bound: Depictions of mental and physical spousal abuse of the main character, on-screen nonconsensual kissing/touching of the main character (not by the love interest), allusions to rape, blood drinking, swearing, graphic sex, graphic violence

Night Elves of Ardani: Graphic violence, graphic sex, coarse language, death, blood, alcohol use, attempted sexual assault, anxiety/panic attacks, burn injuries, killing of an animal

Rogue Elves of Ardani: Graphic violence, graphic sex, coarse language, death, blood, alcohol use, abuse, torture, suicide, dismemberment

Sun Elves of Ardani: Graphic violence, graphic sex, coarse language, death, blood, alcohol use, drug use, burn injuries/fires, references to sexual assault

Dark Elves of Ardani: Graphic violence, graphic sex, coarse language, death, blood, sexual assault (on-screen groping of a secondary character), references to past rape of a POV character, death of a parent, torture, slavery, choking