For a moment of confusion, none knew who was living or dead.

The traveler was safe and sound, on feeling himself; but the lady had swooned. Although he guessed this was the case, it was elsewhere that he ran to aid—to the rear of the vehicle.

The led horse was rearing with bristling mane, and shaking the door, to the handle of which his halter was hitched.

"Hang the confounded beast again!" muttered a broken voice within; "a curse on him for shaking the wall of my laboratory." Becoming louder, the same voice added in Arabic: "I bid you keep quiet, devil!"

"Do not wax angry with Djerid, master," said the traveler, untying the steed and fastening it to the hind wheel; "he is frightened, and for sound reasons."

So saying, he opened a door, let down the steps, and stepped inside the vehicle, closing the door behind him.

He faced a very aged man, with hooked nose, gray eyes, and shaking yet active hands. Sunken in a huge armchair, he was following the lines of a manuscript book on vellum, entitled "The Secret Key to the Cabinet of Magic," while holding a silver skimmer in his other hand.

The three walls—for this old man had called the sides of the living-wagon "walls"—held bookcases, with shelves of bottles, jars and brass-bound boxes, set in wooden cases like utensils on shipboard so as to stand up without upsetting. The old man could reach these articles by rolling the easy chair to them; a crank enabled him to screw up the seat to the level of the highest. The compartment was, in feet, eight by six and six in height. Facing the door was a furnace with hood and bellows. It was now boiling a crucible at a white heat, whence issued the smoke by the pipe overhead exciting the mystery of the villagers wherever the wagon went through.

The whole emitted an odor which in a less grotesque laboratory would have been called a perfume.

The occupant seemed to be in bad humor, for he grumbled: