She had heard enough to understand what was going on; and, as they went up the staircase to their rooms, she met them and smiled. It was a smile of triumph,—or so, at least, the girls fancied.

It was too much for Florence. She turned and shook her clenched fist behind her teacher’s back, and muttered, between her shut teeth,—

“I’ll be even with you yet.”

CHAPTER V.
A TRAP SET.

This was no idle threat. For days Florence spent much time and thought in devising various plans for revenging herself; but for a long while she could not hit on any thing satisfactory.

At last, one day, as she was sitting in her room, she flung her book on the table and clapped her hands, exclaiming,—

“I have it! I have it!”

Her room-mates looked up in surprise.

“What is it?” both asked.