"A swirling mist appeared in front of the frame and changed into a crystal chalice. (...) The lightning-streaked black mist in the chalice contained power that slithered along his nerves, snaked around his spine, and sought its release in the sudden fire in his loins. It was a molten force, catastrophic in intensity, savage beyond a man's comprehension...and he wanted it with all his being. (...) It shattered before he touched it, spraying crystal shards over the makeshift altar.(...)
'Tersa!'
Tersa looked back at him, said three words, and vanished.
Daemon's legs buckled. He huddled on the ground, gasping for air, shuddering from the fear that clawed at his belly. (...)
Three words.
She has come"

(in 'Daughter of the Blood' by Anne Bishop)