Related Clues:

• Gumshoes
• They follow trails
• Hammer and Spade
• Spade and Queen, e.g.
• Private eyes
• Case workers
• Holmes and Chan, for two
• Investigators
• Holmes and Chan, e.g.
• Detectives
• Nancy Drew and Encyclopedia Brown, e.g.
• Whodunit heroes
• Hustles Doctor Watson and Sherlock Holmes
• Case workers?
• Spade and Hammer