It was interesting to have a secret which nobody even guessed.

She often looked at the chimney-piece, and chuckled as she thought of what lay concealed there.
The days were rapidly closing in now, and the time between tea and preparation, which only a few weeks ago was devoted to a last game of tennis or a run by the stream, was perforce spent by the schoolroom fire.

It was only a short interval, not long enough to make any elaborate occupation worth while, so the girls sat knitting in the twilight and chatting until the bell rang for evening work.
One afternoon, when tea was finished, Ulyth, instead of joining the others as usual, walked upstairs to put away some specimens in the Museum.

She passed V B classroom as she did so, and heard smothered peals of mirth issuing from behind the half-closed door.
"What are they doing ?" she thought.

"I believe I'll go and see." But catching Rona's laugh above the rest, she changed her mind, walked on, and bestowed her fossils carefully in a spare corner of one of the cases.