The official GemStone IV encyclopedia.
A summoning chamber is a room which has been magically altered to be sensitive to the piercing of the veil. This will increase the ease with which sorcerers perform demonic summoning, such as Minor Summoning.
- Each chamber is a mana node.
- The chamber provides 25 'phantom' ranks of Sorcerous Lore, Demonology for the purposes of calculating the success of the summoning only.
- Initial casting, or refreshing using the vakra rune within a chamber will add a flat 600 sec to the duration of Minor Summoning (725).
- Each chamber possess "a latticed yellow crystal" which is used to bond a rune book.