Sigil Games continues to torture its fans and followers with daily updates to their teaser page at http://www.vanguardsoh.com - their most recent entry contains a long story about some adventurers trying to figure out a number riddle...obviously a reference to the number riddles Sigil has been posting for many days now.
The last part of this story reads:
"Theories..." Jeric exclaimed. "You have only theories? We did not endure unspeakable horrors and incredible hardship to listen to your theories... loremaster!"
Bormin began to form a response, but not in time. Jeric continued as he unrolled a scroll of leather and began placing the scraps of parchment on top of it.
"You and your band of withered old crows sit safely in your lofty perch, while those who have courage risk their lives for our people."
Bormin wasn't even trying to speak now. When Jeric had placed the last of the scraps on the leather, he carefully rolled it back up and placed it in a fold in his cloak. As he stormed out of the chamber, he shot a last remark at the stifled occupants.
"I'll find the answer myself, and I'll have it before the new moon."
For those that wish to follow this mystery, you might keep an eye on this site - they seem to be following it all very closely :)