To the left leg of one of them was attached a heavy ball.

A similar ball was attached to the right leg of the other.

They had picked these balls up and were struggling along under their weight at a gait which was more like a staggering walk than a trot.
They were pursued by the man whom Cleggett had seen attempt to escape from Morris's.

This man still wore his suit of baby blue pajamas.
He wore nothing else.

He was stiff.