A Habit for Killing will be the working title for the Roger Draper novel project. A Habit for Death is a bit punchier, but there is already a novel by that name, published in 2006.
I think the title hints at three elements in the story:
Killing – it’s a novel about murder
Habit – it involves monks!
Habit – also is a pun for a habitual act – thus a serial murder, but also it’s a pun so alludes to the fact that the book will also have comic moments.
So now I’m going to see if I can change all the labels to: A Habit for Killing. We’ll see if this works!