"Very dark?"
"Yes."
"No light?"
"Yes. They will steal our torches, and then we won't be able to see anything."
Count Messier snatched the torch from his hand and threw it to the ground, stomping on it twice until it was completely extinguished.
"Have you forgotten that you're actually a bat?" He turned his face, slightly opened his mouth, and emitted a sound that humans could not hear.
Suddenly, as the sound waves spread, a hazy image of the underground passage's structure appeared in the minds of Count Messier and the other members of the Blood Clan.
"See, so simple?"
Before he finished speaking, another sound inaudible to humans resonated.
...
Deep in the passage, Jones also slightly opened his mouth.
"Lord, what are you doing?"
Jones waved his hand to signal the dwarf beside him to stay silent.
...
Outside the passage, the image of the passage initially forming in the minds of the Blood Clan became completely blurred.