As long as he has liquor and good pay, why should he ask questions?
They send him messages what to do.

No, I thought over every possible course, and this is the best." While this conversation had been proceeding, we had been shooting the long series of bridges which span the Thames.

As we passed the City the last rays of the sun were gilding the cross upon the summit of St.
Paul's.

It was twilight before we reached the Tower.
"That is Jacobson's Yard," said Holmes, pointing to a bristle of masts and rigging on the Surrey side.

"Cruise gently up and down here under cover of this string of lighters." He took a pair of night-glasses from his pocket and gazed some time at the shore.