Suffice to say, it has created some interesting vault locks that are used extensivly in Indiana Jones and Tomb Raider, so why not source.
A colleague of mine once asked if there were any Indiana Jones maps for source. I replied at the time that i did not believe so. So, why not try to change that.
The map revolves around those mystic beliefs held by the common people of an Anglo-Saxon period. If an alien fell from the sky, it would probably have been seen as either a god sent to save them, or a beast to ruin them. In this case a beast has fallen from a rift in space time, and, not knowing what else to do, has started to kill everything and raise symbiotic armies.
As a result, the knights tracked it to its lair, and, with a bit of knightly cunning, trapped the beast within and built a labyrinth around it. Centuries later, a tomb raider knowing what the beast is likely to be, ventures into the dark with nothing but a gravity gun to try and terminate it's life.
Try and read the runes if you can...