He whipped out his handkerchief, tied it round the cut and holding her arm tightly, forced a way through the crowd towards the Southwark side of the bridge.
He might have got her away unobserved had it not been for Dorrimore's coachman.

The fellow uttered a yell and leaving his horses to take care of themselves leaped from the box.
"A guinea to any one who stops that woman," he shouted.
Lavinia and her companion had nearly reached the obstructive waggon.

A dozen persons or so were between them and the yelling coachman.

If they succeeded in passing the waggon there might be a chance of escaping in the darkness.

But the onlookers crowding between the obstruction and the shops--there were in those days no pavements--were too much interested in what was going on to move, and the two found themselves wedged in a greasy, ragged mob.
Then came a rush from behind by those eager to earn a guinea and things became worse.