We had already noticed those peculiar translucent spaces in the stone of the box.

You remember the hieroglyphic writing had told that the jewel came from the heart of an aerolite, and that the coffer was cut from it also.

It might be, I thought, that the light of the seven stars, shining in the right direction, might have some effect on the box, or something within it.

I raised the blind and looked out.

The Plough was high in the heavens, and both its stars and the Pole Star were straight opposite the window.