Well that's a bit of a difficult question to answer without spoiling too much.
I will say that there is one non-malicious child death, which you don't really see, and a sort of child death.
Thanks. I realize that it's tough to answer. I just know both my wife and I really enjoyed Hill House and I'd like to watch Bly Manor, but the last two episodes of the former were really tough for her. Bly Manor will probably get saved for next October at any rate.
Have you seen Oculus? I have the same question about its content.