Killing the Herald would cause a portal to Not The Cow Level to appear. Once the portal was opened, the Herald couldn't appear again in the same game. In combat, Herald to the Queen behaved just like any Goblin, and even dropped gold as it ran, but moved considerably faster, had more Life, and did not gain a moment of invulnerability when first hit. The cow could escape if not killed quickly, so killing it as soon as possible was advised. In return, it did not have a time limit for killing. Upon death, a usual portion of Goblin loot would be dropped.