"Not very," she said, but she could not help but smile back at him. When he finished wiping her face Arden neatly dropped a handful of snow down his collar. He retaliated by scooping a huge block out of a near-by drift and letting it drape over her head. Arden pushed him backwards into a snowbank and leaped on him and shovelled snow with both hands until her hands stung with cold and Don was completely covered. Channing climbed out of the drift as Arden raced away. He gave chase, though both of them were laughing too much to do much running. He caught her a few hundred feet down the hall and tackled her, bringing her down in another drift. As he was piling snow on her, he became the focal point of a veritable barrage from behind, which drove him to cover behind a girder. His assailants deployed and flushed him from behind his cover, and he stood in the center of a large square area being pelted from all sides. Channing found a handkerchief and waved it as surrender. The pelting slowed a bit, and Channing took that time to race to one side; join Jim Baler, and hurl some snowballs at Barney Carroll across the square. That evened things and the snowfight was joined by Arden, who arose from her snowdrift to join Barney Carroll and Keg Johnson. "We used to freeze 'em," grunted Don. "Me too," agreed Jim. "These things wouldn't stop a fly." Then down the corridor there hurtled a snowball a good two feet in diameter. It caught Channing between the shoulder blades and flattened him completely. Baler turned just in time to stop another one with the pit of his stomach. He went 'ooof!' and landed in the drift beside Don. Another huge one went over their heads as Don was arising, and he saw it splat against a wall to shower Barney Carroll and Arden with bits. "Those would," remarked Don. "And if Walt weren't honeymooning somewheres, I'd suspect that Our Tom Swift had just hauled off and re-invented the ancient Roman catapult." "There's always Wes Farrell, or does the physicist in him make him eschew such anachronisms?" asked Jim. Arden scurried across the square in time to hear him, and she replied: "Not at all. So long as the thing is powered by a new spring-alloy and charged by a servo-mechanism run by a beam-energy tube. Bet he packs 'em with an automatic packing gadget, too." Barney Carroll caught one across the knees that tripped him headlong as he crossed the square. He arrived grunting and grinning. "We can either take it idly," he said, "or retreat in disorder, or storm whatever ramparts he has back there." "I dislike to retreat in disorder," said Channing. "Seems to me that we can get under that siege-gun of his. He must take time to re-load. Keep low, fellers, and pack yourself a goodly load of snowballs as we go." "How to carry 'em?" asked Arden.