er what the creature had done, and, in consequence, did not
feel quite at ease when it came lumbering out of the cage with the
attendant and ranged up alongside of him, rubbing its huge head against
the chevalier's arm after the manner of an affectionate cat.

"Don't be frightened, sir," said Tom, noticing this. "Nothing more'n a
big dog, sir. Had the care of him for eight years, I have--haven't I,
chevalier?--and never a growl or scratch out of him. No 'smile' for your
old Tom, is there, Nero, boy, eh? No fear! Ain't a thing as anybody does
with him, sir, that I wouldn't do off-hand and feel quite safe."

"Even to putting your head in his mouth?" queried Cleek.

"Lord yes!" returned the man, with a laugh. "That's nothing. Done it
many a day. Look here!" With that he pulled the massive jaws apart, and,
bending down, laid his head within them. The lion stood perfectly
passive, and did not offer to close his mouth until it was again empty.
It was then that Cleek remembered and glanced round at young Scarmelli.

"He never 'smiles' for any but the chevalier and his son, I believe you
said," he remarked. "I wonder if the chevalier himself would be as safe
if he were to make a feint of doing that?" For the chevalier, like most
of the other performers, had not changed his dress after the matinee,
since the evening performance was soon to begin; and if, as Cleek had an
idea, that the matter of costume and make-up had anything to do with the
mystery of the thing, here, surely, was a chance to learn.

"Make a feint of it? Certainly I will, doctor," the chevalier replied.
"But why a feint? Why not the actual thing?"

"No, please--at least, not until I have seen how the beast is likely to
take it. Just put your head down close to his muzzle, chevalier. Go
slow, please, and keep your head at a safe distance."

The chevalier obeyed. Bringing his head down until it was on a level
with the animal's own, he opened the ponderous jaws. The beast was as
passive as before; and, finding no trace of the coming of the mysterious
and dreaded "smile," he laid his face between the double row of gleaming
teeth, held it there a moment, and then withdrew it uninjured. Cleek
took his chin between his thumb and forefinger and pinched it hard. What
he had just witnessed would seem to refute the idea of either costume or
make-up having any bearing upon the case.

"Did you do that to-day at the matinee performance, chevalier?" he
hazarded, after a