The next morning after the eleven o'clock recitation had begun, Linda made a pretext for leaving the room. She slipped down into the basement and then came back to her seat to await developments.

Meanwhile, the well-ordered routine of Lakeview Hall was proceeding as usual. The hands of the great clock in the English recitation room pointed to a quarter of twelve, and sidelong looks were being cast at it in pleasurable anticipation of the noon hour.

Bang!

Suddenly the crash of a loud explosion filled every one with terror. The building trembled to its foundations. Clouds of steam poured up from the basement.

A wild cry rent the air.

"What's that?"

"Sounded like an explosion to me."

"Maybe it's an earthquake."

"Oh, see the smoke."