Lillian went back inside the Palace and stood in front of the King's Court, which was the center of the whole Palace. She already had invisibility spell on and was masking herself from other's eyes. She spread her arms and then faced towards the clear night sky. Then she began to chant the spell to summon a being from the other world, that world being Hell.
As she had drawn a large magic circle, she was absorbing vast amount of negative energy from the Netherworld to power the magic circle. The Hell had unlimited supply of negative energy like hatred, lust, revenge, anger, etc. They would be emitted by the beings of the Hell as well as the humans that had gone there after dying.
And because she was letting immense amount of dark power flow through her body, she was in great pain. But no matter how hurt she was, she gritted from between her teeth and kept on chanting the spell.