Expeditionaries are prestigious servants of Origin, chosen from the most promising members of the various training houses. These houses are ancient, and each emphasise the use of different skills and abilities to overcome the challenges outside Origin and return with precious water and artefacts. At the present time, the Noble Corps of Fighters provides the greatest number of new Expeditionaries, a source of constant frustration to their rivals; the Eloquent Fraternity of Magefolk.
When confirmed as Expeditionaries, each new member of the fraternity receives a medallion showing the world of Inundatia, and the two elements that are needed to maintain life within Origin; the artefacts, left by the nightly floods, and the life-giving water. It is the dearest wish of every young man, woman and Gnolf to join the Expeditionaries, though few retain the drive and bravery required as they grow older, and even fewer display the necessary abilities for selection.
The Expeditionaries are run by the Expeditionary Council.