
Earth's thriving lunar colony faces a mysterious, growing threat on the far side of the Moon . . . an alien invasion or nanotechnology run amuck. The crew of Moonbase Columbus makes an amazing discovery on the far side of the Moon-a massive alien structure...


Earth's thriving lunar colony faces a mysterious, growing threat on the far side of the Moon . . . an alien invasion or nanotechnology run amuck. The crew of Moonbase Columbus makes an amazing discovery on the far side of the Moon-a massive alien structure...