Tom looked up from his work in surprise.

"Ta-daaa!" Bud sang out, imitating a trumpet flourish.

Sandy and Phyl Newton marched in, smiling.

"Boy, this is a surprise!" Tom got up to greet them. "A mighty pleasant one. But what's the occasion?"

"The occasion is that you're coming on a mountain hike with us, out in the nice fresh air and sunshine!" Sandy informed him.

"And please don't argue," Phyl said with a giggle. "It's for your own good—not to mention ours."

"I suppose Chow Winkler put you up to this." Tom grinned.

"Never mind that," Sandy said sternly. "Just come along quietly. It's a beautiful day."

Tom glanced at his workbench cluttered with drawings and electronic gear. "Well, okay, since you're twisting my arm," he agreed. "I guess it might clear my brain at that."

"Now you're talking." Bud clapped Tom on the back and propelled him toward the two girls, who promptly seized his arms before he might change his mind.