How did the three Norse siblings escape from the great hall without being noticed?
When the bandits masquerading as soldiers stormed in, the brothers had already vanished into the shadows of the rafters. There, in the far left chamber, a trapdoor had been concealed for generations—a passage known only to a few. One by one, silent as wolves, they had slipped through the ceiling and into the night, unseen.
...
Perhaps it was rage or desperation that gave Red Fox's men the strength to finally smash the barricaded doors wide open. The wood shrieked, iron splintered, and the great hall filled with a roar of triumph.
"Kill them all!" Red Fox bellowed, his voice shaking the beams.
But triumph turned to chaos.
Arrows hissed from the shadows, felling his front line. Men collapsed before they understood what had struck them. From the hidden corners, the archers of Alpha Team unleashed a rain of death.