Karen Chisholm

Whilst not "strictly" crime fiction this is a fascinating intertwining tale that had me up way past when I should have nodded off last night.

From the Blurb:

When Madeleine d’Leon conjures Ned McGinnity as the hero in her latest crime novel, she makes him a serious writer simply because the irony of a protagonist who’d never lower himself to read the story in which he stars, amuses her.

When Ned McGinnity creates Madeleine d’Leon, she is his literary device, a writer of detective ction who is herself a mystery to be unravelled.