With the new D&D storyline being announced soon in the Stream of Many Eyes, WotC has created a new Twitter account called "Immortal Fortress" in which it appears to be giving cryptic answers to questions.
It was announced via their main Twitter account:
"Forgive my usurpation of this information stream, but circumstances call for nothing less. I dare not cede control ere I’ve occasion to recount a brief but dire missive from the realms that time forgot.
The Sage of Shadowdale hath hid on Earth a stone, of power great and imminent import. Its guardian, an exile from my realm, was spirited to Earth with this in tow; To keep it safe and secret ere its prophesied return.
The hour of its need now soon at hand, this item and its wielder must be found; Sent, via portal, back from whence they came. At long last, well and truly homeward-bound.
The Sage of Shadowdale himself is otherwise engaged, and cast me as his proxy in this search. Unable, as I am, to sojourn there myself, this task falls to the denizens of Earth.
Should you be of a mind to render aid, direct your queries to mine own account. I’m called @Immortal4tress, my address: your internet; Elminster’s humble servant, and forever in your debt."
Heading over to the Immortal Fortress account, there is this message: "My thanks to one and all who had the courage to recite the words the Sage of Shadowdale hath writ. I know not when or how these clues will come, so each of us should keep the rest informed. To guarantee that no replies be missed be sure to tag your posts #NoStoneUnturned."
The Twitter account is headed by a black and white photograph of Bodiam Castle in East Sussex. That could be relevant, or it could just be a representative castle.
Image from Alternative Planting blog
It was announced via their main Twitter account:
"Forgive my usurpation of this information stream, but circumstances call for nothing less. I dare not cede control ere I’ve occasion to recount a brief but dire missive from the realms that time forgot.
The Sage of Shadowdale hath hid on Earth a stone, of power great and imminent import. Its guardian, an exile from my realm, was spirited to Earth with this in tow; To keep it safe and secret ere its prophesied return.
The hour of its need now soon at hand, this item and its wielder must be found; Sent, via portal, back from whence they came. At long last, well and truly homeward-bound.
The Sage of Shadowdale himself is otherwise engaged, and cast me as his proxy in this search. Unable, as I am, to sojourn there myself, this task falls to the denizens of Earth.
Should you be of a mind to render aid, direct your queries to mine own account. I’m called @Immortal4tress, my address: your internet; Elminster’s humble servant, and forever in your debt."
Heading over to the Immortal Fortress account, there is this message: "My thanks to one and all who had the courage to recite the words the Sage of Shadowdale hath writ. I know not when or how these clues will come, so each of us should keep the rest informed. To guarantee that no replies be missed be sure to tag your posts #NoStoneUnturned."
The Twitter account is headed by a black and white photograph of Bodiam Castle in East Sussex. That could be relevant, or it could just be a representative castle.
Image from Alternative Planting blog
Big planar portaltemporarily drops that hunk of space time onto Faerun and the only way to get it back is o delve it and restore the status quo? 
