From here, he’d need to cross the entire level, take another staircase up, another hall, and then, if he was lucky, Erawan’s tower would be there. Manon had never gained access to it. Never known what waited up there. Only that it was guarded by Valg at all hours. A good enough place to begin his hunt.
Why have you not thought about it being warded? Surely you don’t think he’d leave his tower in any type of vulnerability??