"Keep the revolver," he said, "and give me the knife. Whatever happens, we must contrive to get away."

Convinced by the boots which Hal had placed too far to the right when leaving them in the corridor for the porter to attend to, they crept on a pace, and grasped the handle of the compartment in which Mr. Brindle was sleeping.

"Quick, the key!" whispered the Spaniard, trying the door, and finding it locked.

There was a grating sound and a faint click as the key was introduced, and the bolt thrown back. But slight though the noise was it reached Hal's ears, even amidst the rattle of the wheels, and startled him from his sleep. Ignorant as to what had disturbed him, he lay on his back, his eyes wide open. Another minute, and he would have turned over to sink into sleep once more, when something bumped heavily against the woodwork which separated his compartment from Mr. Brindle's.

"Don't move, or it will be the worse for you, Señor Englishman!" he heard a hoarse voice exclaim in threatening tones.

It took a few seconds for Hal to comprehend what was happening. "Don't move, or it will be the worse for you!" That meant that someone was in difficulties next door.

"By Jove, those rascals are making another attempt!" he exclaimed; and at once sprang from his bunk.

Flinging the door open, he rushed into the next compartment, to see kneeling on the floor, in the full glare of the electric light, which had been switched on by the Spaniard, Pedro, revolver in hand, the muzzle of which was pressed into Mr. Brindle's ear, while the other hand was placed over his mouth.

Hal had just time to notice that the other scoundrel was busily searching for the bag beneath the bunk, when both men turned and rushed at him, Pedro pressing the trigger of his revolver. There was a blinding flash, followed by a loud report, and Hal felt something strike him on the left shoulder with stunning force. Next second the Spaniard's face, with the long, coal-black beard, suddenly appeared before him in the smoke, and he struck at it with all his might, sending the ruffian staggering back; but he recovered himself in a moment, and rushed towards the doorway, throwing Hal to the floor as he passed.

"How is that now, lad? How do you feel, old boy? Better? That's it; you're smiling. That's the way. Pull yourself together, and drink this off."