Drelkat leads the way forward, following the curvature of the stairwell, to stand before the eastern door. The cleric takes a deep breath, grasps the pull ring, and begins to pull...
A blast of cold wind and colder rain greets you as you open the tower door, to find another wallwalk before you. Looking over the battlements, you can see the courtyard some ninety feet below you. Ahead, through the rain and gloom, it looks like the walkway leads to yet another empty parapet.
"Indeed," says Drelkat, ducking back into the shelter of the tower. "What about that archway over there...it looks like it goes somewhere inside of the keep."