Down in the basement, where they had taken their supper, it was growing quite dark, although no lamp had yet been lit.

Cale was just saying that he must take Rosamund home, and was debating within himself whether it would be wise for Tom to accompany them, when there was a sharp, determined knocking at the door, which made Rosamund jump quickly up with blanching cheeks, whilst Cale threw a startled look at Tom, whose face had grown suddenly set and pale.
"Open in the Queen's name!" cried a loud and authoritative voice from without.
And Cale rose at that summons, for it was not one he might dare to disobey.
The moment he was gone Rosamund sprang to her feet.
"Quick, quick! This way! There is a window at the back.

I will let you out, and bar it after you, and throw the key away.

Come, I will show you where!" Tom sprang after her into a little back kitchen, the door of which the girl promptly locked and barred behind them.

The only other outlet was a narrow window, fastened by a bar that could be locked across it with a padlock.