Then he turned his horse's head and rode slowly back to Bou Saada.

The front of the Hotel du Petit Sahara, where Tarzan stopped
in Bou Saada, is taken up with the bar, two dining-rooms, and the
kitchens. Both of the dining-rooms open directly off the bar,
and one of them is reserved for the use of the officers of the
garrison. As you stand in the barroom you may look into either of
the dining-rooms if you wish.

It was to the bar that Tarzan repaired after speeding Kadour ben
Saden and his party on their way. It was yet early in the morning,
for Kadour ben Saden had elected to ride far that day, so that
it happened that when Tarzan returned there were guests still at
breakfast.

As his casual glance wandered into the officers' dining-room,
Tarzan saw something which brought a look of interest to his
eyes. Lieutenant Gernois was sitting there, and as Tarzan looked
a white-robed Arab approached and, bending, whispered a few words
into the lieutenant's ear. Then he passed on out of the building
through another door.

In itself the thing was nothing, but as the man had stooped to
speak to the officer, Tarzan had caught sight of something which the
accidental parting of the man's burnoose had revealed--he carried
his left arm in a sling.