The locks clicked, and he was gone before she could be sure.

The lock clicked to behind him, and the key was in his hand again.

Heard the key slide in and the lock click back.

He waited for a second to hear the lock click home.

She gave it a turn, and the lock clicked open.

The door closed after him, and he heard the lock click.

In another moment, he was inside the room, and a lock clicked behind him.

Finally the lock clicked and he pushed open the door.

While the money was in his hand the lock clicked.

In a few seconds he heard the lock click open.