No longer contains Foror's Compendium of Dragon Slaying as of Patch 3.2.2, and the class-related books around Cataclysm.
Playthrough of: The Council is in Session, Archmage Vargoth's Retreat, and Following In His Footsteps.
Removed in Patch 7.0.3, a.k.a. Legion. For historical information, visit Wowpedia's article.
This cutscene plays after using the Tear of Elune to activate Light's Heart.
Every two weeks, actually, according to @muffinus. Also, RNG means that you could see the pet again (for NA region) or even just receive gold.
Nope! It exists solely to be sold to a vendor for its gold value. The flavor text in this case is exactly that: flavor. :) Blizz has done that for a lot of "vendor trash" this expansion.
Hm, not sure why it's doing that. Thank you for pointing it out, though. I've added the preview video to the article in the meanwhile.
There was a bug with the profiler addon, and the data seen here is from before the bug was fixed. So, just ignore the data points that are floating off in the distance.
They're one of the Blizzard-is-trolling-us-again items. If you hang on to them until you've finished the quest chain, you'll get Rax's Magnifying Glass. Turns out that they are Just Normal Beans.