I retired into it, and it was up to Barker to do the rest.
"I guess you can fill in for yourselves what he did.

He opened the window and made the mark on the sill to give an idea of how the murderer escaped.

It was a tall order, that; but as the bridge was up there was no other way.

Then, when everything was fixed, he rang the bell for all he was worth.

What happened afterward you know.