Quick answer: Find the Three Towers bell on a timber-planked platform among the Mandate Encampment towers; take the upper path from the Dovecote bell to reach it.
The lower path out of Dovecote is blocked. You climb instead, crossing a high deck, running along the cliff, and dropping down onto the bell.
Where the Three Towers bell is
The Three Towers bell is part of the Mandate Encampment. It is near the top of the tower structure, past the Dovecote bell, on a planked timber platform bordered by rope strung between posts.
The bell is made from a light-colored wooden post with red cloth wound around it. Approach and press E to ring it.
When you rest there, a menu titled “Three Towers” opens.
How to reach Three Towers from the Dovecote bell
Begin at the Dovecote bell. Go through the single wooden door beside it to enter the tower complex.
Skip the lower path through the complex. A wooden plank barricade with a post and solid rock next to it closes the way, no prompt appears to open it, and attacks have no effect on it. Turn around and head for the upper route.
Head back and climb the stair ramp. At the top, a Space prompt shows on a tall wooden wall, and pressing Space pulls Soul up onto a high wooden deck.
Continue across the elevated deck until its far end meets the rock face. Remain on the deck: below is a rock platform enclosed by walls, with no way forward.
When you reach the deck’s far end, look for a Space prompt on the rock face. Press Space once to send Soul running along the cliff wall and onto the plank walkway attached to the rock.
Follow the plank walkway down to where it ends. Step off the edge for a short drop onto the bell deck below, then walk over to the Three Towers bell.
