Dr. Watson

He had a bad fall in the hunting field when he was a kid.

He's been like this ever since.

I'm sorry to hear that, sir.

And, incidentally, the one person in this house who doesn't hate Gerald.

His dog?

Yes.

A dog may be the key to this whole matter.

A dog?

What makes you say that, Holmes?

When a man brings a quick and painless poison home to a household containing an old and feeble dog, it's more than possible that he has obtained that poison quite legitimately to give the dog a merciful death.

After all, Alice, dear, he is old.

And almost blind now.

But, Mr. Holmes, if you think Gerald brought home the poison to put Gladstone out of the way, and I admit it sounds perfectly logical, what made you decide to come here tonight?

Because I dare not even guess.

what you may have done by including the thought of murder in this situation.

Where is your brother, Gilly?

In his room upstairs, asleep.

I wonder if we might go up to him.

I'd like to talk to him, if you don't mind.

And after that, I... I want a few words with your cousin, Gerald Lovelace.