"For a moment I regarded the Pattern -- a shining mass of curved lines that tricked the eye as it tried to trace them -- imbedded there, huge, in the floor's slick blackness. It had given me power over Shadow, it had restored most of my memory. It would also destroy me in an instant if I were to essay it improperly. What gratitude the prospect did arouse in me was therefore not untinged with fear. It was a splendid and cryptic old family heirloom which belonged right where it was, in the cellar." Corwin - The Sign of the Unicorn
