|Book Universe||The Saga of Darren Shan|
|First Book Appearance||"Trials of Death"|
The Ba'Halen's Spiders are a type of spider that live in Vampire Mountain. They were the cause of the flea infestation in the mountain as they chased them down through the Vampires tunnels and halls. They have an amazing psychic ability and can communicate by telepathy with skilled humans and Vampires.