Spook

Notes:
 * Spook spawns randomly around the Tombstone at (I-10) in King Ranperre's Tomb. Spook will first spawn shortly after 20:00. Thereafter, it will spawn around 4 hours (game time) after being killed, 1 (and sometimes 2) more times. This usually results in spawn times of 20:00, 24:00, and sometimes shortly before 4:00 (in order for Spook to spawn shortly before 4:00, it must be killed before 00:30). Spook will despawn after 4:00 if not claimed.
 * Contrary to popular belief, Spook is not a notorious monster. Due to his limited pop range, time based spawn and fairly good drop item, he is still often referred to as an nm.

Historical Background
Spook is a term for a ghost. The word Spook goes back to 1801, evidently derived from Dutch. Its first use as a verb is recorded in 1867 as "to walk or act like a ghost". The verb usage "to scare or unnerve" dates back to 1935. Spooky, though, goes back to 1854. It was used as a colloquial term for spy in the 20th century.