Here Comes a Candle was the novel that Fry had written on his own, before capturing Calliope. He had no ideas for a follow-up and seemed destined to be a one-hit wonder.
To me, it seemed that Fry's tremendous success with the work of his captured Muse did not actually bring him happiness. Yes, the world believed he was a successful writer, but he knew that only that first book was his creation, and it only existed in used book stores and old collections. He felt like a fraud and wanted the validation that could be had of someone desiring to reprint his masterpiece.