Two naked men, swinging between them a long cylinder or log, flashed through the bonfire space and on into the dark below the wall.
"Pung-dongs!" bawled the captain.

"Look out for the pung-dong!" His friends were too busy firing into the crowded gloom below.

Rudolph, fumbling at side-bolt and pulling trigger, felt the end of a ladder bump his forehead, saw turban and mediaeval halberd heave above him, and without time to think of firing, dashed the muzzle of his gun at the climber's face.

The shock was solid, the halberd rang on the platform, but the man vanished like a shade.
"Very neat," growled Heywood, who in the same instant, with a great shove, managed to fling down the ladder.

"Perfectly silly attack.