Larian Studios Forums Divinity II The Dragon Knight Saga / Flames of Vengeance (English) Divinity II - Flames of Vengeance Caracalla ghost quest (Crowell's house)

I made it to the room with the invisible enemy (s), lit all the candles and the ghost appeared for about 5 seconds, then the candles went out and the ghost was invisible again. How do you keep it visible? Kind of lame if you have to keep repeating the candle lighting over and over and over. Any tips on how to keep the ghost visible?