Which sentence should appear first in an effective summary of part 3 of "the adventure of the blue carbuncle"? when he sees how upset the man is, holmes offers to help john robinson track down the location of the missing goose. shortly after leaving the salesperson, holmes and watson overhear an argument and return to the scene. holmes and watson go to the market at covent garden to look for the goose seller. holmes tricks the angry salesman into show him his records for buying and selling geese.