I am stuck on 5/6 in Stantonsburg. I've done the Causeway, the Factory, the swamp outpost, the deadly garden, the mesmerising gauntlet, and Pit Fest which is listed as a bonus level. I have an axe, a sledgehammer, a lantern, and nine water balloons (I used one to put out a fire and get to Pit Fest). I can make it through the Sewers, but the dark lurker thing kills me as soon as I exit. I just can't seem to find the remaining level!
EDIT: Never mind. I found the river hedge maze OUTSIDE Stantonsburg to the west.