Access the cove

To get to the cove, you have to go through Dark Deepholm - beach. Take the narrow passage as in the video, then jump with one of your characters. Go to the left and do the series of jumps. No need to bring everyone, you will be directly tp when one of your characters reaches the festering creek. You will have a rock below to descend, leading you directly to it. Be careful, it is not clearly visible, refer to the video if necessary!

Make Bouual appear

Once in the festering cove, you will be able to speak to the red-cap fish, who will ask you for blood. You can either sacrifice yourself, convince them that you are going to kill on their behalf, or kill them. I advise you first to convince them, you will thus recover a rare sickle (even if it is null!). Then position yourself correctly, high shooters and a person or two in melee, preferably with area spells. Start the fight by casting an AOE spell in the pile to do as much damage as possible. Be careful the fight is quite tough, think about buffing yourself before this one if necessary.

As soon as you start the fight, Bouual will appear near the hotel to attack you.

Booty and epilogue

Once defeated, the boss will give you a superb useless sickle 2d4 damage… In short, it will be for the glory! Maybe they'll add some lore to this boss, but in the meantime it was light as a loot! Pity !