But the Lady Amalthea and Prince Lir walked and spoke and sang together as blithely as though King Haggard's castle had become a green wood, wild and shadowy with spring. They climbed the crooked towers like hills, picnicked in stone meadows under a stone sky, and splashed up and down stairways that had softened and quickened into streams.

From 2003 through 2011 Beagle was involved in a financial dispute with Granada over nonpayment of contractually due profit and merchandising shares. Beagle's work as a screenwriter interrupted his early career direction as a novelist magazine nonfiction author and short-story writer. In the 1970s Beagle turned to screenwriting.

During the last twenty-five years he has won several literary awards including a World Fantasy Award for Life Achievement in 2011. His best-known work is The Last Unicorn (1968) a fantasy novel he wrote in his twenties which Locus subscribers voted the number five "All-Time Best Fantasy Novel" in 1987.