So I have collected Leandra's Blood, crafted the death knight spell. My quest log says that Icara will tell me where to go, however, she says nothing but "congrats u got the spell".
So then using the Death Knight spell, I killed everything around the temple door in phantom forest, right where the doom night is.
Then for the fifth time I thought I was getting somewhere. Then immediately the door says I need something to enter it. None of the important NPCs have anything to say regarding the door (which I'm only ASSUMING is where I need to be anyway).
I also lowered a wooden bridge to go deeper into some temple, found
a large stone head that I can't interact with that is blocking an obvious path, the Alchemy lab, and that's it, dead end.
Since level 16 or so I started to become really frustrated with how cryptic simple game progression can be. I'm a very thorough player and don't like asking for help, but I just can't take wandering around anymore.
EDIT: Here is a photo of my quest log.
Quest Log