floorinâ. Well, I reckon I can fix it tomorrow.â
Frank and Joe started to push the boulder out through the hole, then Joe gasped in surprise. On the huge stone were brightly painted red letters. Rolling the boulder a bit farther, the boys made out a crudely painted message:
HARDYSâLEAVE TOWN!
Â
âA warning from Big Allâ Frank said grimly.
CHAPTER V
The Strange Blue Light
THE three detectives and Hank examined the warning message on the huge rock.
âBig Al is a rough customer,â Mr. Hardy said, frowning. âBe on your guard at all times.â
âWeâll watch out, Dad,â Frank promised.
He and Joe shoved the boulder outside and looked up the hill. The moon had set and the mountainside was shrouded in darkness.
âNo telling if anyoneâs up there,â Joe muttered.
The two brothers shivered in the icy wind, and then squirmed through the hole into the burned kitchen. Meanwhile, Hank pulled on warm clothes, went out to a lean-to, and brought back a tarpaulin. The boys helped him nail it over the hole in the wall, then set the stove up.
âThatâll do till morninâ,â Hank said.
Frank and Joe were up as soon as it was light. After a quick breakfast they climbed the steep, snow-covered slope behind the shack, following the trail plowed by the huge boulder. The boys soon found a deep gouge where the stone had been pried out of the hillside.
âSomebody used a crowbar to get it going,â Joe said, kneeling on the ground.
âAnd here are some traces of red paint,â Frank pointed out.
They scouted around thoroughly, and noticed the snow had been disturbed, as if to cover tracks.
âWhoever pried that stone loose,â Frank said thoughtfully, âmay have come from town rather than from a hideout in the hills.â
âWhy?â
âBecause itâs not likely that anyone hiding up in the mountains would have red paint on hand. The person who did this probably got it at the village store.â
âMaybe Big Al has an agent in Lucky Lode,â Joe suggested.
The boys walked on up the hill. The undergrowth at the top was parted and broken.
âSomeone forced his way through here,â Frank said.
They followed the trampled brush to a trail which led along the wooded ridge, paralleling the main street of Lucky Lode below them. Soon they spotted a narrow path leading down into the small community.
âThe man weâre after could have come this way,â Frank said. âWeâd better scout for clues.â
Slowly he and Joe walked down the steep, narrow trail. There were footprints, but these were too jumbled to be of any significance. They reached the bottom without finding anything else, then climbed back to the top and continued along the ridge.
After a while the boys emerged into a clearing. Before them lay an old cemetery. They crawled through a gap in the dilapidated wooden fence and walked silently among the gravestones. From the bleak, windswept spot they could see all of Lucky Lode in the valley below. The old part of town ended directly under the cemetery.
âLook at these, Frank,â called Joe, from where he knelt beside a double headstone.
ââJohn and James Coulsonâ!â Frank read. âMike Onslowâs partners!â
âI guess they came to Lucky Lode to try for another stake,â Joe said.
âYouâre probably right,â Frank replied.
The boys decided to go into town and headed for the cemetery gate. Coarse brush grew up around the ornate posts. Frank passed through, but Joe was pulled up short.
âWait!â he said. âIâm caught!â
Big burrs clung to his trousers. Fumbling with heavily gloved fingers, he managed to get free. Together, he and Frank pulled out all the burrs and the brothers scrambled down the slope.
At the foot they saw the deserted gray-weathered buildings. As they walked along the old wooden sidewalk,