My mind is a blank, and I am floating across Amazon in a daze...
I would like something meaty (long-haul flight), middlebrow and a paperback.
No science fiction, fantasy, and definitely no godawful timeslip novels,: "Ooh, look - I found an old diary and now, whoops! I've fallen into the picturesque past!!" So no Kate Mosse and her ilk drivel.
To take my mind off my squashed legs, fellow cattle and general fear, an absorbing page-turner would be ideal.