Larian Studios Forums Divinity 2 - Ego Draconis (English) Help/Tips/Tricks Dragon cliff castle chest key?

There is a circular turret in the ruins of the castle near a teleporter & it's really hard to get to cos of this jumping you have to do on beams. After an hour or two of tring I finally got up there got a book and......... damn locked chest. Does anyone know where the key is please? I've made my self motion sick doing so am going to go & eat something to help that LOL.
Thanks In Advance
Tali

Actually I found it ge'ez if I had waited a little bit longer I would not have to write here & bother people with lame questions. LOL
Just incase anyone else has this question: it was in a tiny chest atop the other turret behind the trader.
Thanks
Tali