and Grace.

Elfreda shook her head. "I won't say. The person made me promise I
wouldn't tell."

"Then we aren't curious to know," said Grace promptly. "Forget that we
asked you."

"Oh, that's all right," assured Elfreda. "You'll know soon enough if she
wins the honor."

"What are the latest developments in the campus mystery, Professor
Holmes?" laughed Grace.

"There aren't any," responded Elfreda, shrugging her shoulders. "I found
what I supposed to be a clue, and, careful investigator that I am, ran
it down, but it led to nothing. However, I haven't given up. I'll solve
the problem yet. The noble name of Briggs shall never be associated with
failure."

"Any time before commencement, Elfreda," jeered Miriam. "You might keep
it as a parting surprise. We shall need something to help bolster up our
courage on that last day when the air is rent with good-byes."

"That isn't a bad idea," commented Elfreda. "Perhaps I will. I wish
to-morrow were here. I am more anxious to know who won the honor prize
than I am to discover who is responsible for our mysterious campus
house."

"What are you girls going to do this evening?" asked Grace, as they
reached Wayne Hall and seated themselves on the veranda for a few
minutes' further chat before going upstairs to get ready for dinner.

"I am going to see Ruth and Arline to-night," announced Anne. "Will you
girls go with me?"

"I can't," said Miriam regretfully. "I have letters to write."

"I'll go," agreed Grace.

Elfreda alone was silent.

"And what has J. Elfreda Briggs on her mind?" questioned Anne.

"I can't go. I have another little investigation to pursue," said
Elfreda pompously. "If it turns out well, I may have something to tell
you girls."

But that night, when the four chums gathered in Grace's room for a brief
social session before retiring, Elfreda shook her head soberly when
reminded of her partial promise. "I am sorry, but I didn't say
positively that I'd tell you."

"Then it didn't turn out well?" from Miriam.

"No," replied Elfreda shortly, "it didn't."

Three pairs of eyes were fixed inquiringly upon Elfreda. "I didn't
promise to tell you anything, you know," she reminded bluntly.

"We are well aware of that fact, my dear Miss Briggs," laughed Miriam,
"but we would appreciate your confidence, and having aroused our
curiosity you ought to do something to satisfy it."

"All right, I'll tell you," decided Elfreda. "I purposely waylaid
Kathleen