Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - Enhanced Edition Need help in the last area *Maybe spoilers*

So I'm in the Last Garden on the quest Eno Tsal Eramtghin and have gotten myself to a point on the path where I have a locked door ahead of me. To the side is a Chapel where Astarte is laid out on the slab, but I cannot find any key or switch or anything of the sort to get this door open. Help!

you need to burn astrate down with some aoe flame spell (like flame rain).