"They're not fibs! How dare you say so!" flamed Merle.

"It's the absolute truth!" endorsed Mavis.

"Do you stick to that?"

"Of course we do."

"Then I shall have to call on Sybil to tell us something she saw yesterday."

Sybil, who was red, nervous, and even more uncomfortable than Iva, rose from her seat to make her accusation.

"I was in the garden yesterday after school, and I saw Merle come back, hurry among the bushes, and climb in at the study window. I waited, and presently she came out again and scooted off as if she didn't want to meet anybody."

"O—o—oh! You didn't see me! I wasn't there! Was I, Mavis?"

"Most certainly not. You were at home all the time. I can prove that!"

"I think the thing proves itself!" said Iva. "First of all, you're seen by a witness entering the study, where, no doubt, the exam papers were spread out on the table, and then you come to school primed with the questions. There isn't a shadow of doubt."