Yeah, it is possible to get the other quest before (I wonder if I should change that). Was the reference from the walkthrough as well?
Yeah, the new event in Solina beach got added recently, I still haven't updated that part of the walkthrough. I was hoping this wouldn't be surprising, however, but I guess I didn't give enough hints.
The weird pendant also reduces your inhibitions by 10 when you wear it, but right now it doesn't have any other effects. At one point I was thinking of tying it to the vampire in the hospital, but plans changed since then, so now I am not 100% sure of what I'll do with it.