House of Crimson Hearts

• Addiction
• Withdrawal
• On page suicidal thoughts (brief and in vampire terms)
• Blood play
• Edging Dom/sub scenes
• On page masochism
• Off page historical homophobia
• Off page homophobic beating referenced
• Trapped in a burning building
• On page discrimination for being a vampire

House of Crimson Kisses

• Blood play
• Edging
• Dom / sub scenes
• On page masochism and pain play
• On page sadism (and not always healthy sadism)
• Brats and doms
• Using sex and seduction to gain information
• Public sex/exhibitionism
• Orgasm denial as punishment
• Claiming bite during sex
• Mutual blood drinking during sex
• Chaining up a lover
• Forcing a lover to watch you with someone else
• Alcohol and substance use/addiction
• Withdrawal
• Off page historical homophobia references
• On page discrimination for being a vampire
• Graphic violence and gore
• Unhealthy relationship dynamics and emotional manipulation
• Memory loss and memory manipulation
• Self-harm and suicidal ideation
• Torture and physical abuse
• Kidnapping and captivity
• Death of loved ones and grief
• Hate speech and discrimination
• Forced transition from human to vampire
• Murder and mass casualties
• Mind control and mental coercion
• Stalking and possessive behaviour
• Body horror and gore
  

House of Crimson Curses

• Explicit sexual content
• Violence and gore
• Blood drinking
• Body horror (demon transformations)
• Death of characters
• Betrayal and manipulation
• Memory loss/alteration
• Near-death experiences
• Torture (mentioned)
• Childhood trauma (mentioned)
• BDSM elements

House of Crimson Nights

• Explicit sexual scenes
• BDSM elements and power dynamics
• Blood consumption (vampires drinking blood)
• Violence and threats of violence
• References to murder and death
• Throat/windpipe violence references
• Club/nightlife setting with implied substance use
• Dominant/submissive dynamics
• Age gap implied (immortal vampire/mortal human)
• Power imbalance (club owner/security)
• References to parents being killed
• Loss and grief themes
• Possessive behaviour
• Obsessive thoughts
• Predator/prey dynamics