Caleb's desire to go back in time is kind of fascinating to me. In a world where magic can raise the dead, it would make more sense for him to try and research either resurrection magic or even try and manipulate either of the clerics into being strong enough to revive his parents. The thing is, as far as I can tell, Caleb doesn't want to just bring his parents back to life. He wants to never have killed them in the first place, he wants to either live a life absolved of the guilt of killing them, or create a timeline where some version of him has that freedom. To me that's much more selfish, as he is potentially messing with time in unforeseen ways. Caleb might not always be one of my favorites of the group, but the prospect of him having to choose what reality he wants to live in is really exciting to me. i just hope he can keep himself alive long enough to get to that narrative moment.