At midnight, the two switched shifts.
David rested.
Luke looked out the window into the pitch darkness; the manor was expansive, making it hard to detect anyone trying to sneak in.
He didn't know how much time had passed when he faintly heard a crying sound.
"Woo woo…"
The crying was suppressed, fluctuating between high and low, sounding like a woman, yet like a child.
The desolate feeling was identical to the sound he heard in the cellar.
Luke looked out at the manor, shrouded in darkness with nothing abnormal in sight, and began to check his firearm.
David, stirred either by the sound of the gun being loaded or the crying, rubbed his face, got out of the car, changed into gear from the trunk, and threw Luke a set of bullet-proof armor.
Luke donned the bullet-proof vest. Though he had a "Bullet-Proof Card," that card was meant to save his life in critical moments, and who knew if he could draw it next time; better to save it if he could.