Before I can move, Kinko is out of his box. He rushes towards the front door; he climbs on to the tender.

“Come along! Come along!” he shouts.

I do not know how I have done it, but here I am at his side, on the foot-plate, my feet in the blood of the driver and stoker, who have been thrown off on to the line.

Faruskiar and his accomplices are no longer here.

But before they went one of them has taken off the brakes, jammed down the regulator to full speed, thrown fresh coals into the fire-box, and the train is running with frightful velocity.

In a few minutes we shall reach the Tjon viaduct.

Kinko, energetic and resolute, is as cool as a cucumber. But in vain he tries to move the regulator, to shut off the steam, to put on the brake. These valves and levers, what shall we do with them?

“I must tell Popof!” I shout.

“And what can he do? No; there is only one way——”

“And what is that?”