During the collapse, the first floor of the school buckled under, and the second and third floors of the building came down upon it.

The floor buckled and Jan found him self hurled down.

A hundred yards on, the floor buckled again.

"A failure - " The floor buckled and jumped beneath them.

She did not see the grubby finger marks on the wall, nor the place where the floor had buckled.

Unfortunately, Hollywood humidity melted the mud, and the floors buckled.

She was also vaguely transparent, but she had weight, because the floor buckled and splintered under her feet.

Then the room seemed to jump, the floor buckled, and his body slammed into a mass of Sirians.

Sometimes the floor rose and buckled, and sometimes the overhead lights didn't work.

The floor buckled in waves high enough to please a skateboarder.