Ash House

The Cambridge field house at Sarrum (founded 4608) where the Schola and White Walls examiners study green coal, deep and light iron, treated aerial materials and strange residues; it may condemn a process but cannot issue a final certificate.

A research body that records correlations and samples air, residue and green coal from deep workings. It holds three standing hypotheses about green coal and manifestations and refuses the common wording that spirits are drawn to it. A Cambridge research post in Sarrum where examiners work at source on green coal, deep iron and manifestations in the deepest workings, compare residues and issue retrieval warrants.

Named with it

• Doctor Hollis Prewitt · Schola side
• Alchemist Cecily Harrow · furnace rooms

Ties

• Cambridge examiners linked to the Collegium
• links Sarrum companies to the Retrieval Office
• run by the Schola and the White Walls
• leases its compound from White Falcon
• formally tied into Cambridge's Retrieval Office
• at odds with the Black Lantern Brethren at shaft mouths

At the table

Sarrum's companies put up with it, reckoning certification and reopened shafts worth the wait; the charter companies grumble at its slowness and vie with one another for its attention all the same. Its Oxford critics call it technical curiosity outrunning Reclamation. A company in its pay is regarded as acting on Cambridge's behalf. Its survey of the underground extends no further than the ground beneath its own lease. Frame a question as research, and it will take the question up. The Brethren, for their part, would have a suppression; Ash House would rather have hours at the shaft mouth to take a trace. With every fresh deepening, by its own account, the ground found is less continuous.