James Blish's masterwork, originally published in four volumes, explores a future built on two crucial discoveries: antigravity devices - 'spindizzies' - which allow whole cities to be lifted from the Earth to become giant spaceships, and longevity drugs which enable their inhabitants to live for thousands of years. As Earth stagnates, one by one the cities depart to the stars, leading to the establishment of a unique Galactic empire.

This omnibus includes the following novels:

• They Shall Have Stars
• A Life for the Stars
• Earthman, Come Home
• The Triumph of Time
• Afterword by by Richard D. Mullen