“Spooky in here at night,” Pearl had said with a shudder. The sound of her voice awakened dead echoes and live bats.

Betty felt like turning back, but Ruth plodded on. Down a long, steep stairway, across a circular court, then into a narrow passage they went, until Ruth with a sudden pause whispered:

“There! There! I hear ’em.”

“Here,” she said, holding out her burning candle. “Get a light from this and shoot straight ahead.”

With trembling fingers Ruth lighted a Roman candle, watched the fuse sputter for a second, then jumped as pop-pop-pop, three balls of fire went shooting down between stone walls to send an astonishing number of rats scurrying for shelter.

It would be difficult indeed to find a more exciting game than the one that followed. And such a setting! An ancient and abandoned fort. Down these narrow passageways and resounding corridors had sounded the tramp-tramp-tramp of marching soldiers. Through long night watches in time of peace, in stress of war, weary night guards had patrolled their solemn beats. From these narrow windows eyes had scanned the bay, while like giant watch dogs, grim cannons loomed at the gunner’s side.

In this small room, where chains, lifted and dropped, give out a lugubrious sound, some prisoner has sat in solitary confinement to meditate upon his act of desertion or of treachery against the land that offered him food and shelter.

The three girls thought little of these things as they parted to go each her own way down separate corridors to meet sooner or later with screams of terror and laughter as one stealing a march upon another set balls of fire dancing about her feet.

A move in the dark or the slightest sound called forth a volley of red, blue, green and yellow fire. More often than not it was a rat or a bat that drew the fire, but there is quite as much sport in sending a huge rat scurrying for cover as in surprising a friendly enemy.

So the battle had gone merrily on until Ruth, finding herself alone in a remote corner of the fort and, hearing a sound, had fired a volley with the result we have already seen.