These signs should have told an experienced observer that the man was worried and scared. (from Death In Silver by Lester Dent, writing as Kenneth Robeson) Death In Silver pits Doc Savage against a very well organized gang that uses robberies as a means to cover their real motives. The criminal acts are carried out be gang members dressed in silver suits and dubbed Silver Death's-Heads. Monk and Ham are captured by the Silver Death's-Heads early in the story, forcing Doc to operate on his own until he is able to identify where his aides are held and is able to rescue them.