They called it dungeon because of the monsters inside with different strength and powers that are attacking anyone who enter their teritory in the dungeon.Alucard doesn't know that Roger's group of exorcist are elite one so he was shoked that the camp commander ordered them to investigate the dungeon.They investigate the dungeon and they observed that it is like the hell that is drawn in the old tablet that the ancient exorcist carved.Inside the dungeon there are carved details of ancient magic that can be used by the humans and there are old equipments and the bone of human found there at the end before going downward there is a broken crystal and they believe that it was the one of the seal used for the star-seal and the soul of the angel in there is gone they think that Hanzo eaten the soul of an angel.But Alucard asked"If Hanzo can eat the soul of an angel,why the other four crystal is not broken?"
The other are thinking of the answer and the sword talked to Alucard"touch the crystal the he was unconscious in the real world.After that he was inside his dream an angel apeared and asked"Do you want to know how to reseal this dungeon"
Alucard repies"How?"
"Sacrifice the woman with the divine bow use your power of draining the magic of speciefic target and transfer it to the bow and use some of your magic to shoot the crystal with the arrow made of your magic inside the arrow is charged magic from the woman who has the bow"the angel said.
"Sorry,I can't afford to sacrifice my friend I will find some other way"Alucard repied quickly
"So you want to know the truth?"The Angel asked
"What truth?"Alucard said
"The truth about you and that sword"the angel said.