He had dropped into space through an open trapdoor!

In an instant, he was squirming through the open trapdoor.

We flew through the open trapdoor, into a very bright light.

I can leave the trapdoor open most of the time.

They had come up through an open trapdoor, close to one end of a long gallery.

He stopped just below the edge of the open trapdoor on to the leads.

F She began to make her way to the open trapdoor.

From here, a ladder led up to an open trapdoor.

He could see one of Bill's feet, hanging out over the open trapdoor.

I couldn't make out the words, then someone else joined the other man in the open trapdoor.