It is in an area of town that most avoid, a tattered store with a water-stained sign, never repainted, and a brass bell more brown than bright that clangs dully when a customer walks in. The shelves stock only one product in myriad tiny variations, stacked on shelves from floor to ceiling. In this dank and ruined store, behind the paint-peeling frontage and crusted glass, they only sell one product: miracles.  Face the glowering old man or the disinterested Saturday girl with her magazines and bubblegum. Browse the shelves and if you find your miracle you can buy it. If it is the miracle you need the price will never be beyond your means, but if it is the one you merely want - well, greed has a higher price. Here are Cures for Cancer, on the shelf in the corner Debts and Favours Repaid. Cheap and so rarely bought are the dusty stack of Amends and Forgiveness, despite the Buy One Get One Free offer that has been going on forever.