John Putnam Thatcher, Senior Vice-President of the Sloan Guaranty Trust, is that really different sleuth among the American group. He's correct, an intelligent conservative, and his specialty is big money. His last was Murder Makes the Wheels Go 'Round, corpses in the body work at Detroit. This time it's just as timely--Civil Rights hits Wall St. with a millionaire Negro applying for membership on the Exchange. This is an author bonded to carry cash and cadavers through to knowledgeable entertainment and she's always delivered.