Pink & pretty

This time last year, my knowledgeable blog-readers identified a mystery flower I’d spotted as a Frittilary: an ornamental species I’d never seen before. This year’s April enigma is pictured above. Does anyone know the name of this pretty little pink flower growing along the same woodsy garden edge where I always see the year’s first snowdrops, crocuses, Solomon’s seal, and Jack-in-the-pulpit?