Baron Spider (クモ男爵 Kumo Danshaku) is the nineth episode of Ultra Q.
Returning home from a party one night, Jun and company become lost in the outskirts of Tokyo. When Ippei and Takehara accidently stumble into a marsh, the group seeks refuge in a nearby Western-style mansion to help keep the two men warm. While in the abandoned mansion, Jun remembers the tale of the Spider Baron, a man who lived in a similarly-styled dwelling and harbored a bizarre attraction to spiders. Legend has it that when the baron's only daughter was accidentally killed by his poisonous tarantula, she was reborn as a spider herself, driving her father insane. Before long, Jun and the others are attacked by two giant tarantulas, the reincarnated forms of the baron and his daughter that have been lurking in the shadows of the mansion. Jun succeeds in killing one of them with a knife and the group flees the mansion with the second spider in close pursuit. Upon reaching their cars, Jun is successful in driving over the monstrous arachnid, killing it, too. When the spider expires, the mansion crumbles into the swamp leaving nary a trace of its existence.
- Ultra Q Volume 3 features episodes 9-12, & Total Natural Color Blu-Ray Volume 3 Features Episodes 8-11.