Ring (The Xeelee Sequence 4)

About this book

Michael Pooles wormholes constructed in the orbit of Jupiter had opened the galaxy to humankind. Then Poole tried looping a wormhole back on itself tying a knot in space and ripping a hole in time. It worked. Too well. Poole was never seen again. Then from far in the future from a time so distant that the stars themselves were dying embers came an urgent SOS--and a promise. The universe was doomed but humankind was not. Poole had stumbled upon an immense artifact light-years across fabricated from the very string of the cosmos. The universe had a door. And it was open...