An early description of the book:
The novel is set in very early 1930′s Oxford, features Tolkien and Lewis as characters, and is told from the point of view of a lonely 11 year old girl. She’s Greek, a refugee from the sack of Smyrna, and one day discovers a Romany boy in her attic. The boy is a shape-shifter, and becomes her friend. The two begin to explore the world around Oxford, discovering things they never imagined existed. The girl, Anna, is obsessed by the Odyssey, and likens the Romany boy, Luca, to Odysseus.
Kearney also has a Warhammer 40,000 novel entitled Umbra Sumus due out before then from the Black Library, but the Black Library is infamously close-mouthed about its release schedule so it is unclear when that will be published. Paul also reports that he has started work on a new novel, something he has been wanting to write for four or five years.