Hell-ED and Hell-ED Ball
Hell-ED
The Hell-ED was recovered from the ruins of a once-influential temple of higher thought. It is thought to be the creation of a far superior intelligence or time traveller, and specifically delivered to a location in space-time where its discoverers were guaranteed to find it, setting in motion a whole chain of events ultimately resulting in the Future Wars.
It is speculated that the Hell-ED is to play a direct role in ending the Future Wars, thus being the beginning and end of that set of happenings. Its current location is a mystery, its reappearance being an omen of a new Golden Age.
Hell-ED Ball
References to an ancient sport, called Hell-ED Ball, were found encoded in the brains of several of the artefact's discoverers. According to legend, the four-player sport was only played at one point in history, and is still, objectively speaking, the greatest game in existence.
Since the Hell-ED is required for this game, it is unlikely to be enjoyed again until the end times. It is written in the stars that Hell-ED ball will be played once more on the ruins of the Earth.
Archaeological sites
Recollections are hazy. The following aerial image from PastVision provides some clues.
The location of the timely discoveries