You begin searching and digging through years and years of dusty old uncompiled notes that were never delivered to the archives for one reason or another. The slot where the key was supposed to be was at the centre of the room, in the supporting structure of the solar system.
Though you accidentally hit yourself on the head by crashing it into a supporting beam, you did manage to have a closer look. There was one great orb in the middle. Surrounded by smaller spheres on rings, all of these planets were well known to you; these had been in common learning since antiquity.
At the centre stood the world, Illurbis. Surrounding that were the moon and then the sun. Beyond that lay the planets, and then came the stars. Through these, the gods would signal future events to their faithful, their only method of communicating with mortals since the covenant of non-interference.
You found the key under a scrap of parchment, which out of curiosity you decided to read. The contents of it are beyond both your knowledge of Isidorian and astrology; it would seem to be the incoherent ramblings of a lunatic, talking about the mass and weight of the sun compared to the world, how frustrated the author is at not being able to calculate such a thing, and that he had his suspicions about the sun, not the world, being the centre.
You didn't really care, nor did you understand the arguments that were laid before you, so you laid the parchment aside and took the key, which was made of a bluish-grey stone with silver engravings in the form of stars and floral patterns. With you back to the model.
