Candlekeep holds very little lore about athas and krynn, and the tomes it does hold are in those hidden rooms one must use ward tokens to teleport into and out of. However, there were many accounts written of unintentional forays into the mists by those who found their ways back into Toril, down the centuries, so there are quite a few books on the Domains of Dread, and they are more accessible (i.e. in "open" rooms). However, the sages don't CURRENTLY discuss the Domains a lot. They're more interested in arguing about exactly what happened in the Second Sundering, and the Spellplague, and who can be blamed for it all...
This material is not available under the CC BY-SA license.
This material is "fan content" by Ed Greenwood, permitted under the Fan Content Policy of Wizards of the Coast. It is reproduced here with permission from Ed Greenwood; readers are urged to support his Patreon to encourage further lore contributions of this kind.