Häagen-Dazs ice cream is on sale. But the selection has already been picked through. The popular flavors are gone. Only a scattering of pints in bland varieties remain: creme brulee, walnut, and two kinds of vanilla. The only chocolate left is in the English Toffee. But there’s a blind spot in the ice cream freezer display where the frame of the door blocks several varieties from view. The impulse shoppers were too quick to notice. These flavors are almost fully stocked. It’s like finding Narnia, except that the forgotten stash of Mint Chocolate Chip isn’t an allegory for Jesus.