He remained there, comatose, while the Warlock Knights mined what they called ironfell or "the iron" from his body. This material, which regenerated quickly, was used by the Knights to fashion items and constructs they called shardsouls.
- ↑ 1.0 1.1 1.2 Bruce R. Cordell, Ed Greenwood, Chris Sims (August 2008). Forgotten Realms Campaign Guide. (Wizards of the Coast), p. 276. ISBN 978-0-7869-4924-3.