It happened almost immediately after the two house-masters, the Captain, and the prefects had quietly left the room to attend a meeting.

Robin Hood and Friar Tuck were hammering merrily at each other with stout wooden swords, when one of the oil-lamps above them was suddenly put out of action by a direct hit from an apple.

Intent on the performance, none of the Merry Men on or off the stage noticed who hurled the apple, but everybody saw the flare as the burning oil ran swiftly along the stage and ignited the flimsy scenery.

"Sherwood Forest" was in a blaze immediately, and there were all the makings of a stampeding fire-panic if prompt action were not taken.

"Down with the curtain!" cried Robin. "Rush to the front, Dave, and tell them to keep calm. Say we've got it under—we shall have in half a tick. Little John, fetch the fire-extinguisher beside the back door."

Without thinking of the risk he ran of singeing the hair off his head, he dragged some of the canvas away from the running fire, and then tried to beat out the flames with his sword. His cool, quick example inspired others, who tore away anything that might have become involved in the fire. Little John's return with the fire-extinguisher settled matters. When the contents of that had been sprayed upon the blaze, nothing but smoke and smell remained of what might have been a very serious conflagration.

"That's a part of the performance that wasn't in the bill," said Robin. "Jove, how my heart thumps! I really thought we should all be burnt alive! What started it, chaps? I wasn't looking."

"This started it," said Little John, picking up a hard russet apple, which had rolled into a corner. "Some bounder in front chucked it at the lamp."

"Or possibly at me," Robin said, "and hit the lamp instead. Don't let's make more than a silly trick of it, or the masters may hear about it, and there'll be such a row as never was. The show's over for to-night, anyhow. What a thundering mess to clear up!"

"Beastly shame we should have it to do," grumbled Will Scarlet. "It's pretty certain one of the Squirms threw the apple. Why not bring them in to swab the deck?"