Accordingly we crossed the room, and I put my hands upon one of the boards and pulled. But I might as well have tried to tow a troopship with a piece of cotton, for all the satisfactory result I got; the planks were trebly screwed to the window frame, and each in turn defied me. When I was tired Beckenham put his strength to it, but even our united efforts were of no avail, and, panting and exhausted, we were at length obliged to give it up as hopeless.

"This is a pretty fix we've got ourselves into," I said as soon as I had recovered sufficient breath to speak. "How on earth are we to escape?"

"I can't say, unless we manage to burst that door and fight our way out. I wonder if that could be done."

"First, let's look at the door."

We crossed the room again, and I examined the door carefully. It was not a very strong one; but I was sufficient of a carpenter to know that it would withstand a good deal of pressure before it would give way.

"I've a good mind to try it," I said; "but in that case, remember, it will probably mean a hand-to-hand fight on the other side, and, unarmed and weak as we are, we shall be pretty sure to get the worst of it."

"Never mind that," my intrepid companion replied, with a confidence in his voice that I was very far from feeling. "In for a penny, in for a pound; even if we're killed it couldn't be worse than being buried alive."

"That's so, and if fighting's your idea, I'm your man," I answered. "Let me first take my bearings, and then I'll see what I can do against it. You get out of the way, but be sure to stand by to rush the passage directly the door goes."

Again I felt the door and wall in order that I might be sure where it lay, and having done so crossed the room. My heart was beating like a Nasmyth hammer, and it was nearly a minute before I could pull myself together sufficiently for my rush. Then summoning every muscle in my body to my assistance, I dashed across and at it with all the strength my frame was capable of. Considering the darkness of the room, my steering was not so bad, for my shoulder caught the door just above its centre; there was a great crash—a noise of breaking timbers—and amid a shower of splinters and general débris I fell headlong through into the passage. By the time it would have taken me to count five, Beckenham was beside me helping me to rise.

"Now stand by for big trouble!" I said, rubbing my shoulder, and every moment expecting to see a door open and a crowd of Prendergast's ruffians come rushing out. "We shall have them on us in a minute."