Borders of Infinity is a science fiction novella by Lois McMaster Bujold, part of the Vorkosigan Saga. It explores themes of loyalty, sacrifice, and the complexities of war through the experiences of its characters.

The novella follows Miles Vorkosigan as he navigates the challenges of a war-torn galaxy, dealing with political intrigue and personal dilemmas. It highlights his resourcefulness and determination in the face of overwhelming odds.