This time no one will attack you, at least for some time. You have to shoot to the bell to open the gate. To do this, turn right, enter the bigger room and go upstairs. The guards will be alarmed, so you can choose another way and move out a stone from the wall, a few steps backwards. Whatever way you choose, turn left to the belfry. Open the hatch with the magic and shoot towards the bell with the bow; you'll see the opening of the gate.
Go in through the gate. Find the secret egg climb on the cornice on left side, then climb to the roof and go through a small window. Catch the beam and get to the other building. Turn right and you will fall onto a small ledge with the prize. Now enter the building, which is on the right side of yard. Then go upstairs and climb up until you'll reach the roof. Get to the next roof and go along the beam over the abyss. Here the archers are not so friendly as before. A few meters further there is a small army which waits for death. They are not very strong. Enter the barn, jump on the boxes and go along the planks. Shoot to the bell as before. Leave the building and go to the sewers, entrance is in front of the barn. Go straight, until you reach a big hole, destroy the obstructing tree and enter the next tunnel. Smash the obstacle, and then jump out of the sewers. Enter the stone building on the right. It turns out to be a trap, but there is no reason to panic. Run to the door and destroy them by using the magic. After setting yourself free kill every archer and knight. Destroy the rock nearby the big gun by using the magic skill, this will help you to get upstairs and open the main gate. Now use the big crossbow and go through the gate.