The Wulfenbach Sentinel is a very specialized subtype of Wulfenbach clank apparently created to keep people out of the Wulfenbach restricted zone and to keep a look out for Agatha and to report back to Gil if she is found. There are many of these clanks patrolling the Wulfenbach restricted zone around Mechanicsburg. The name Wulfenbach Sentinel is [ given] [[Chronology - Volume #|✣ ]] by Ishtvan to Tweedle.