Question

4. How did Holmes figure out what had happened that night when he visited Mr Holder's house?
Book = Raintree
chapter name = The Adventure of the Beryl Coronet​

Answer 1

Answer:

Sherlock simply follows the boot-prints in the snow in the story, but in a modern adaptation I see him instead using DNA evidence, with the fingerprints of the Coronet leading to the solution of the mystery.

Answer 2

Explanation:

Watson's looking out at the street, and he sees someone he thinks is nuts.