Erotica at novel length is doing something other than delivering heat on demand. Unfurl runs past ten hours, with all the room that implies for hesitation, reversal and the slow undoing of a decision, and that scale is the first honest thing to say about Elodie Hart as a writer.
The catalogue lists the book under the heading Alchemy, which points to a wider body of work sharing its world rather than a one-off. Anything further is not ours to supply. What we can vouch for is the shape of the thing, and the shape is patient rather than urgent.