As soon as William pulled Lilith inside the cabinet, he immediately covered her lips with his right hand before closing the door.
He didn't have time to warn the Amazon, so he had to resort to drastic measures in order to deal with the problem at hand.
He was afraid that Lilith would say something and alert the Demons, so he covered her lips with his right hand, and his left holding her in place, so she wouldn't be able to move.
Just as Lilith was about to complain, she heard the sound of a door opening, followed by voices. Her body immediately tensed, as she braced herself to fight.
"Don't do anything reckless," William whispered using the lowest volume that he could.
Lilith nodded her head in understanding.