.
No! No! I shall never ask you.

For all the sign I will give you you may go to your grave with sealed lips.

But what I have said you must do!" He bent his head over her with tender care.

At the same time she felt her arm pressed and shaken inconspicuously, but in an undeniable manner.
"You must do it." A little shake that no passer-by could notice; and this was going on in a deserted part of the dock.

"It must be done.