Larian Studios Forums Divinity II The Dragon Knight Saga / Flames of Vengeance (English) Divinity II - Flames of Vengeance I am stuck in Champions Academy

I an stuck in a room in Champions Academy. A yellow barrier is not letting me back out. I have all the items from around Aleroth but no orbs. I know that all the riddles on the items lead you to the orbs. I cannot work out the riddles so how do I get the orbs?