In silence the two men approached the grounds surrounding the sanatorium.  In the soft dirt of the road the hoofs of their mounts made no sound, and the shadows of the trees that border the front of the enclosure hid them from the view of the trooper who held four riderless horses in a little patch of moonlight that broke through the opening in the trees at the main gate of the institution.

Barney was the first to see the animals and the man.

“S-s-st,” he hissed, reining in his horse.

Butzow drew alongside the American.

“What can it mean?” asked Barney.  “That fellow is a trooper, but I cannot make out his uniform.”

“Wait here,” said Butzow, and slipping from his horse he crept closer to the man, hugging the dense shadows close to the trees.

Barney reined in nearer the low wall.  From his saddle he could see the grounds beyond through the branches of a tree.  As he looked his attention was suddenly riveted upon a sight that sent his heart into his throat.

Three men were dragging a struggling, half-naked figure down the gravel walk from the sanatorium toward the gate.  One kept a hand clapped across the mouth of the prisoner, who struck and fought his assailants with all the frenzy of despair.

Barney leaped from his saddle and ran headlong after Butzow.  The lieutenant had reached the gate but an instant ahead of him when the trooper, turning suddenly at some slight sound of the officer’s foot upon the ground, detected the man creeping upon him.  In an instant the fellow had whipped out a revolver, and raising it fired point-blank at Butzow’s chest; but in the same instant a figure shot out of the shadows beside him, and with the report of the revolver a heavy fist caught the trooper on the side of the chin, crumpling him to the ground as if he were dead.

The blow had been in time to deflect the muzzle of the firearm, and the bullet whistled harmlessly past the lieutenant.

“Your majesty!” exclaimed Butzow excitedly.  “Go back.  He might have killed you.”

Barney leaped to the other’s side and grasping him by the shoulders wheeled him about so that he faced the gate.

“There, Butzow,” he cried, “there is your king, and from the looks of it he never needed a loyal subject more than he does this moment.  Come!” Without waiting to see if the other followed him, Barney Custer leaped through the gate full in the faces of the astonished trio that was dragging Leopold of Lutha from his sanctuary.

At sight of the American the king gave a muffled cry of relief, and then Barney was upon those who held him.  A stinging uppercut lifted Coblich clear of the ground to drop him, dazed and bewildered, at the foot of the monarch he had outraged.  Maenck drew a revolver only to have it struck from his hand by the sword of Butzow, who had followed closely upon the American’s heels.

Barney, seizing the king by the arm, started on a run for the gateway.  In his wake came Butzow with a drawn sword beating back Stein, who was armed with a cavalry saber, and Maenck who had now drawn his own sword.