In The Riddle
of the Crown Jewels, you play the role of Doctor Watson.
You have received
an urgent summons to the rooms of your good friend Sherlock
Holmes by his landlady, Mrs. Hudson. Normally you are not
up and about so early on a Saturday.
But here you are,
outside the Baker Street residence, and not a moment too soon;
for the fog has thickened and travelling is difficult since
you can't see more than a few feet in front of you.