Whispers Under Ground ( Peter Grant #3 ) [Aaronovitch, Ben]

It begins with a dead body at the far end of the Baker Street tube station, all that remains of American exchange student James Gallagher--and the victim's wealthy, politically powerful family is understandably eager to get to the bottom of the gruesome murder. The trouble is, the bottom--if it exists at all--is deeper and more unnatural than anyone suspects. Original.