little white teeth fiercely down into her red under lip and vowed with
flashing eyes that he should never see Margaret again if power of hers
could prevent it.

The letter from Forsythe had reached her on Saturday evening, and she
had come to the Sunday service with the distinct idea of trying to plan
how she might get rid of Margaret. It would be hard enough to evade her
father's vigilance if he once found out the young man had returned; but
to have him begin to go and see Margaret again was a thing she could not
and would not stand.

The idea obsessed her to the exclusion of all others, and made her watch
her teacher as if by her very concentration of thought upon her some way
out of the difficulty might be evolved; as if Margaret herself might
give forth a hint of weakness somewhere that would show her how to plan.

To that intent she had come close in the group with the others around
the teacher at the close of meeting, and, so standing, had overheard all
that the Brownleighs had said. The lightning flash of triumph that she
cast at Margaret as she left the school-house was her own signal that
she had found a way at last. Her opportunity had come, and just in time.
Forsythe was to arrive in Arizona some time on Tuesday, and wanted Rosa
to meet him at one of their old trysting-places, out some distance from
her father's house. He knew that school would just be over, for she had
written him about Commencement, and so he understood that she would be
free. But he did not know that the place he had selected to meet her was
on one of Margaret's favorite trails where she and Bud often rode in the
late afternoons, and that above all things Rosa wished to avoid any
danger of meeting her teacher; for she not only feared that Forsythe's
attention would be drawn away from her, but also that Margaret might
feel it her duty to report to her father about her clandestine meeting.

Rosa's heart beat high as she rode demurely home with her father,
answering his pleasantries with smiles and dimples and a coaxing word,
just as he loved to have her. But she was not thinking of her father,
though she kept well her mask of interest in what he had to say. She was
trying to plan how she might use what she had heard to get rid of
Margaret Earle. If only Mrs. Brownleigh would do as she had hinted and
send some one Tuesday morning to escort Miss Earle over to her home, all
would be clear sailing for Rosa; but she dared not trust to such a
p