City of Light - Queen's Tower | City of Light Prince of Persia Guide

Find green Power Plate and jump onto it.

Then use Elika's help to repeat the action. You will have run on the walls and ceiling for a longer while. Try to avoid all obstacles.

Jump onto the wall from the terrace which allows you to getting to another ring.

You will have to fight the opponent at the top. Stand near the opened door and allow him to attack you. When you run under his legs, start attacking and push the opponent off the edge. When it is all over, allow Elika to heal the location.