The Book of Astea contends with mental health. One character has had
suicidal thoughts and reflects on it at various points in the story.
There is a discussion of self-harm but it is not shown on page.

The final scene in Ch. 7 of Book 2 Sundered Moon contains the sexual assault of a man.
Book 2 contains violence against the hecatite, which is an intelligent race of panther-like beings.

The society in this story is inherently racist. As such, there is strong
racial language. There is profanity and violence as well, including
descriptions of gore and blood.