motionless, was looking down at us.

``He's been following you all the way,''
said the engineer.

``Who's been following us?'' I asked.

``That's Mart up there--my friend and
yours,'' said Marston to the Blight. ``I'm
rather glad I didn't meet you on the other
side of the mountain--that's `the Wild
Dog.' '' The Blight looked incredulous, but
Marston knew the man and knew the horse.

So Mart--hard-working Mart--was
the Wild Dog, and he was content to do
the Blight all service without thanks,
merely for the privilege of secretly seeing
her face now and then; and yet he would
not look upon that face when she was a
guest under his roof and asleep.

Still, when we dropped behind the two
girls I gave Marston the Hon. Sam's
warning, and for a moment he looked
rather grave.

``Well,'' he said, smiling, ``if I'm
found in the road some day, you'll know
who did it.''