you old Mormon!" he called.

"Cheer up yourself, you cross old bachelor!" retorted Roy, quite
unnecessarily loud. "Can't you raise enough nerve to make up with Bo?"

Carmichael evacuated the doorway as if he had been spurred. He was quite
red in the face while he unhitched the team, and silent during the ride
up to the ranch-house. There he got down and followed the girls into the
sitting room. He appeared still somber, though not sullen, and had fully
regained his composure.

"Did you find out who shot Roy?" he asked, abruptly, of Helen.

"Yes. But I promised Roy I would not tell," replied Helen, nervously.
She averted her eyes from his searching gaze, intuitively fearing his
next query.

"Was it thet--Riggs?"

"Las Vegas, don't ask me. I will not break my promise."

He strode to the window and looked out a moment, and presently, when
he turned toward Bo, he seemed a stronger, loftier, more impelling man,
with all his emotions under control.

"Bo, will you listen to me--if I swear to speak the truth--as I know
it?"

"Why, certainly," replied Bo, with the color coming swiftly to her face.

"Roy doesn't want me to know because he wants to meet thet fellar
himself. An' I want to know because I want to stop him before he can do
more dirt to us or our friends. Thet's Roy's reason an' mine. An' I'm
askin' YOU to tell me."

"But, Tom--I oughtn't," replied Bo, haltingly.

"Did you promise Roy not to tell?"

"No."

"Or your sister?"

"No. I didn't promise either."

"Wal, then you tell me. I want you to trust me in this here matter. But
not because I love you an' once had a wild dream you might care a little
for me--"

"Oh--Tom!" faltered Bo.

"Listen. I want you to trust me because I'm the one who knows what's
best. I wouldn't lie an' I wouldn't say so if I didn't know shore. I
swear Dale will back me up. But he can't be here for some days. An' thet
gang has got to be bluffed. You ought to see this. I reckon you've been
quick in savvyin' Western ways. I couldn't pay you no higher compliment,
Bo Rayner.... Now will you tell me?"

"Yes, I will," replied Bo, with the blaze leaping to her eyes.

"Oh, Bo--please don't--please don't. Wait!" implored Helen.

"Bo--it's between you an' me," said Carmichael.

"Tom, I'll tell you," whispered Bo. "It was a lowdown, cowardly
trick.... Roy was surrounded--and shot from behind Beasley--by that
four-flush Riggs!"

CHAPTER XIX

The memory of a woman had ruin