Mr Gryle is a feral banshee under the employment of Reacher Gilt. He is a ruthless killer who is capable of covering his tracks. In Going Postal, Mr Gryle is hired to clear up loose ends and competition by Reacher Gilt. He is first hired to take out a banker who Reacher believes is at breaking point. The carnage that Mr Gryle wreaks on the banker is enough to confuse the City Watch's attempts to solve the murder, rendering their werewolf incapable of following his tracks. He is next hired to destroy the Ankh-Morpork Post Office and assassinate the Postmaster Moist von Lipwig. However, he is only given a description and he attempts to assassinate Acting Postmaster Tolliver Groat instead after setting fire to the Post Office. Stanley Howler foils his attempt to finish the job by smacking his