Cave 294 Incident

During the Industrial Era of the Tebburus Unification War, in a cave named 'Cave 294' (which is a part of the Irvoern Cavern system under Ooblar, Tebburus), a large screen was constructed at a cinema. This screen played thousands of times through its history, but for unknown reasons it was destroyed about 40 years after it was built. It was playing a film to a large crowd at the time of destruction. It went entirely black suddenly - but 10 seconds later, it displayed an etherial outline shillouette of what is presumed to be an alien. Shortly after, the corners of the screen started to glow a bright white. This spread to the rest of the frame eventually. At this point, they could only see the large glowing rectangle with an outline of an alien displayed on it. The alien talked in an unknown language that remains unknown to this day. The goals of this creature are also still beyond the understanding of the HF. Shortly after, the entire screen began to melt. The rectangular frame began to slowly collapse but despite this it seemed to remain operational and the alien continued to talk until the entire screen fell off the wall.
This incident has terrified many, but there has only been this one recorded case of anything similar happening. There are several theories about how this could happen, ranging from nanobots, sentient quantum particles or influencing the neural input of everyone's brains that were present. This has caused the Ooblar nation to launch a full investigation, taking an interest in this technology whichcould give them an overwhelming advantage in the war. However these attempts were ultimately not sucessful. The remains of the screen remain on display at a museum on Tebburus near the incident. It is an extremely old artifact, rivalling others found from the unification war. This makes it extremely valuable and almost 45 000 years old despite its primitive (by current standards) technology.