Loot chest in Edgeville Stronghold of Player safety?

In Runescape where is the loot chest that has 10 thousand coins and fighter gloves? I looked everywhere but I can't find it.

So firstly, the Stronghold of Player Safety is located north of Gunnarsgrunn (formerly known as Barbarian Village). On the west side of the house there is a jail entrance you can use to enter the building. Go into the second room on the left and pull back the poster. You will enter into a dungeon.

From here, run north, then around south, then up north again, until you see cockroach soldiers. Run to the north point and go up the stairs. Run west into a small room with three cockroach soldiers there. Pull the old lever in the room, then go back down the stairs.

NOTE: The monsters are not aggressive, so you are completely safe here (unless you attack them, and they can do some hefty damage)

After going down the stairs, you will see a jail door on the east side of the room. Go into it, and you will appear on another floor. Follow the path and then go north. You will see the chest on the right.

Open the chest... and:

The antique lamps give 500xp in any skill, and the fighting gloves give an armour bonus of 7 and a life point boost of 15.