The Mournival was the advisory council of four captains of the Luna Wolves Legion, the authority of its members second only to Horus himself within the Legion. Even so, it carried no official weight, was considered to be outside the command structure and was a position purely internal to the legion. At the end of the Great Crusade, it was composed of Ezekyle Abaddon, 'Little' Horus Aximand, Tarik Torgaddon and Garviel Loken