Following the drilling attempt, a hole has somehow opened up in the wall which allows Quatermass and the others access to the interior chamber. There they find the remains of insect-like aliens resembling giant three-legged locusts, with stubby antennae on their heads giving the impression of horns. As Quatermass and Roney examine the remains, they theorise that the aliens might have come from a nearby planet which was habitable five million years ago — Mars. Meanwhile, the borozon drill operator clearing his equipment from the craft triggers off more poltergeist activity. The operator is forced to run through the streets in a dazed panic until he finds sanctuary inside a local church. Quatermass and Roney find him there, and he describes visions of the insect aliens killing each other. As Quatermass investigates deeper into the history of the area, he finds accounts dating back to medieval times about devils and ghosts, all tending to be centred on incidents where the ground was disturbed. He suspects that somehow a psychic projection of these beings has remained behind on the alien ship and is being seen by certain people who come in contact with it.
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