Everyone followed Lancelot's gaze, staring intently at the ceiling above. After a wait that felt long but was actually only a few minutes, the ceiling suddenly became transparent, and ripples like water began to emanate from it.
A few seconds later, the once solid rock ceiling had completely turned into an illusion. Accompanied by a whistle, the attackers leaped in from the rooftop. Lancelot took a closer look and realized these creatures had hyena heads, humanoid bodies, and an appalling stench — they were a band of gnoll robbers.
Whatever their reasons for launching the attack, it definitely did not include the possibility that their opponents would be fully armed.
Lancelot's longsword thrust out, and a gnoll hadn't even touched the ground before it became a corpse, a huge bloody hole gaping in its chest.