The Gleaming Spiral is the fifth Asylum Pack in the Rituals of the Order cycle for Call of Cthulhu: The Card Game. Lucy sees the horrifying consequences of learning secrets that are best left alone as she witnesses the fate of Dr. Cooke.

The Gleaming Spiral is a fixed 60 card Asylum Pack that contains 20 different never-before-seen cards based on the dark mythos of master horror writer H.P. Lovecraft, designed to augment existing decks and add variety to the Call of Cthulhu metagame.