High Bridge is a town built upon the River Ratterlin. It started as a castle built on a natural bridge and in the years of Interregnum many houses were built beside it as it was safe from the Dead. The river is constantly patrolled by guard boats where it flows under the town.
Lirael sails under High Bridge with the Clayr's boat Finder and is the victim of two unsuccessful assassination attempts. The first time the boat tacks and knocks Lirael out of the way as they move into the bridge's shadow. The second time Sameth casts an arrow ward as they emerge from beneath the bridge. The Disreputable Dog forces the assassin to walk into the river using the powers of Kibeth.