There was no answer, but it swung slowly inward and the boys entered.

Two sections of floor gave way, swinging freely inward to reveal a long, dark shaft.

Neither had she expected the door to swing silently inward.

A moment later, he heard electronic servos start up, and the gates began to swing slowly inward.

The door swung slowly inward, as though by accident.

He pushed against the great door, and it swung silently inward.

The door swung slowly inward and for a moment there was no one in sight.

The Shadow, swinging inward as he fired, had picked his mark with perfect precision.

He swiftly recovered his arm and the door swung fully inward at a touch.

The Shadow was spinning about as the door swung violently inward.