As soon as Karen entered the room, something seemed amiss. What was it? Everything was exactly where it should be, as it had to be: the antique furniture, none of it made less than a thousand years ago (although she always suspected that most of them had repairs that had necessitated the use of new materials); the way the drapes were hanging just so; the precise placing of the paintings of her ancestors, the....
No, there was nothing physically different; everything was perfect, even down to the coolness of the air and the bluish tinge of the lights.
For the first time in her adult life, she felt truly afraid. All the wards were in place -- she could feel them and they were not reacting to a magical attack -- but somehow, an attack there was, its growing power threatening to overwhelm her.