The Bunker is located in Lebanon, Kansas and was set up by the Men of Letters. Here they stored their collected knowledge "every object, scroll, spell ever collected for thousands of years under one roof...the safest place on earth, warded against any evil ever created."[1]. The key to this place is in The Box.
History
In 1958
Abaddon, one of the
Knights of Hell, was sent by party or parties unknown to kill the members of the group who were gathered in Normal, Illinois. They were gathered for the initiation of
Henry Winchester and
Josie Sands. Abaddon killed David Ackers and Ted Bowen, and blinded
Larry Ganem. After Henry bursts through to find out what was happening, Larry, crawls up to Henry and entrusts him with
The Box, which contains the key to where all the knowledge the Men of Letters has collected is stored. She than went on to burn down their quarters before following Henry through the portal created by his
Blood Spell. Sam, visits Larry Ganem, the other survivor of the incident, and to further his knowledge of The Box asks him what he knows. After Larry explains everything, Abaddon, possessing Larry's wife kills Larry and captures Sam. Abaddon then calls
Dean for a trade between Sam and Henry & The Box. During the trade, Henry shoots Abaddon in the head with a bullet that had a Devil's Trap carved onto it. This immobilized Abbadon which allows Dean cuts her up into pieces. After Henry's death, Sam keeps The Box and contemplates whether he should lock it away or use it.
