The Dobie Paradox: british mystery novel (Professor Dobie Book 3)

Eccentric John Dobie and his rather more practical girlfriend Kate Coyle are braving an Atlantic gale to visit a patient in a clinic when they find a young girl lying in a coma by the road-side. Despite their best efforts, seventeen-year-old Beverley Sutro dies of her injuries that evening.
Is she a victim of a hit-and-run or did someone deliberately plan her death? To the irritation of the police, Dobie - in his own inimitable way - begins to investigate. With Dobie assisting the police with their enquiries anything can happen. And it does.

"Cory goes in for clever plots, but the joy of the book lies in the wit of its writing." TABLET
"Stunningly unusual and entertaining." SUNDAY TELEGRAPH