Baldur's Gate II: Enhanced Edition

Completion leads to obtaining the Cleric's Stronghold.
In the process, the opportunity arises to add Keldorn to the party.
It’s better to go to the cultists themselves already pumped up. Firstly, beholders hit hard, and secondly, after a certain point you cannot go outside. And it wouldn’t hurt to buy Balduran’s shield in advance from Deidre in the adventurer’s shop.
The trophy is given when the quest is handed over to the customer. At the same time, stronghold if we play as a cleric.