The multipedes were a race of giant cave dwelling centipedes that were inadvertently created by the Cabal. Unlike normal centipedes they behaved with a hive mentality and while bullets didn't seem to stop them stun pulse guns did. Nikola Tesla came in search of the Source Blood, but instead discovered the multipedes. The multipedes didn't kill him, but instead wrapped him in some kind of wire that Magnus described as a protein column surrounding a hollow tube like hair or veins. The reason the multipedes kept him alive was probably because he shared the same blood type as them.