Nasty Skulkers are not placed on the table at the start of the game like other troops. Instead you must make a note of any Goblin units that include Nasty Skulkers. These units are referred to as concealing units. If their concealing unit is wiped out or flees the battlefield before they are revealed, the Nasty Skulkers are removed as casualties. There is no other way a Nasty Skulker can be harmed until revealed. Nasty Skulkers must be revealed at the start of the unit's first round of Close Combat, and can't be revealed at any other time. Place the Nasty Skulkers following the rules for characters joining a unit. They may never leave their concealing unit. Your opponent only gets Victory Points for Nasty Skulkers when the concealing unit is Dead or Fled.