The Heave

The Heave lies off the map, out in the sea: no border leads there. It is for levels 12 to 15: rolling downs round rock the world shoved up out of the ground, with Ropefoot, its outpost, on the southern downs. Nothing else in the world stands as high.

• The spires. The tallest, the Crown, rises a kilometre and a half from the downs; the Sister, the Gallows Needle, the Widow and the rest stand from a few hundred metres to well over a kilometre, and the Anvil and the Stair are mesas stepped in benches. Their sides are sheer, so you climb them by their ramps: each wound round its spire from the foot to the flat summit, cut into the rock in places and jutting out over the drop in others, with a rail along the open edge. Balconies jut out from the ramps every so far. The Crown's ramp is a long walk.
• The bridges. Rock bridges span from summit to summit: the Crown to the Sister, the Gallows Needle to Hookstone, the Widow to the Stair. Hookstone has no ramp of its own; its bridge is the only way onto it.
• The Drift. Over the middle of the isle hang floats of rock, from about one and a half to nearly two kilometres up, bridged one to the next. You reach them by waystones: step onto a stone and it carries you to its twin. One stands near Ropefoot and carries you to the first float; one stands on the Crown's summit and carries you to the float beside it; and one on the northern downs carries you to the highest float of all. Each stone on a float carries you back down to its twin.

Nothing up there will catch you if you step off the edge: you fall all the way to the land, unhurt but a long way from where you were. Caves, arches and ledges are cut into the downs as on the Riven Isle. Ropefoot's people have work for you, ending with calls into the Windward Vault and the Rook Warren, whose doors stand on the downs. If you die, you wake at Rope's End Graves or Cloudfoot Graves, whichever is nearer.