A hansom-cab drove up, they lifted Hine into it, got in themselves, and drove off.

As the cab turned, Archie Parminter glanced up to the windows of the house.

But Sylvia was behind the curtains at the side.

He could not have seen her.

Sylvia leaned her head against the panels of the door and concentrated all her powers so that not a movement in the house might escape her ears.