Lucius:
"Oh no. Demons!" Lucius gasps in realization, instinctively raising his shield - not that it offered much help against bats. "Your vampire masters are gone, leave our mortal realm!"
The mist swirling around Lucius begins to coalesce. It is still more cloud than anything else, and it does surround him, but a vaguely humanoid shape is forming in front of the paladin - torso, two arms, neck and head and horns. There are no defined features yet. But you can still see its head moving as it replies
"Don't worry, I will be leaving soon enough. But not without some payment for the time I have been forced to stay here." Its voice is low and guttural, starting like a loud whisper and gradually becoming clearer as the body becomes more solid.