Hardcover
Published June 3, 1980 by Das Quelle-Buch.
When a man Victor Dean falls down the stairs in the offices of Pym's Publicity, a respectable London advertising agency, it looks like an accident. Then Lord Peter Wimsey is called in, and he soon discovers there's more to copy writing than meets the eye-- cocaine, blackmail, and some wanton women can be read between the lines.