The Haterfen is a extremely dangerous creature known for its immensely nutritious and delicious milk. The milk is a necessary ingredient in one of Inglip's favorite deserts: the Strawberry Loopren.
However, aquiring the milk is extremely dangerous, as the Haterfen's teats are covered with razor sharp spikes and it spews lava from its maw. A Trathirian soup boy by the name of Pithir was tasked to milk it as punishment for vomiting in to Lord Inglip's breakfast soup. It is not known if Pithir succeded in this task, nor is what may have become of him or the Haterfen.
External link[]
http://www.reddit.com/r/Inglip/comments/f7yc7/milk_the_vile_haterfen/