Before the main invasion force appears, the Vord will send out small rodent-size parasites. These parasites take over the host and, during the initial phase, will just lead the host back to the Vord nest. The Marat refer to the hosts as the "taken". Once they're taken, there's almost no hope of ever recovering the original person's consciousness. If the host could previously control furies, this ability is lost until furycrafting is used against the taken host. When fighting, the host will have little concern for its own life and will ignore most pain.