It is Necessary

In a cold icy voice, the man reminded the woman, "This is just the first sacrifice. We need three more in order to get the master here." His white hair came out when he removed his hood. He looked deathly cold. 

"You don't have to tell me. I know that," she replied in an equally cold voice. Her pale white face looked like that of a ghost in the moonlight that filtered through the trees. 

"In that case you better bring more of these beasts, else-," the man warned.

The woman's heart jumped with terror but she kept her emotions well hidden. "Why don't you go and get them?"

His eyes became cold, hard and flinty with her curt answer. "Don't make me sacrifice you next," he threatened her in a nasty tone.

The woman exhaled deeply and walked past him. She was dead scared on the inside.