Read again? And again, and again, and...
This is the second of the five original Amber novels.
Corwin travels to the land called Avalon, intending to raise an army, bring guns to Amber, and take the throne from his usurping brother Eric.
He fights dark things from a black Circle, is reunited with a long-lost brother, and encounters a mysterious black road that seems to cut through Shadow to threaten the very heart of Amber.