Who was abducted by Hades, leading to the changing of seasons in Greek myth?

Persephone

What imaginary creature might leave money under your pillow for a tooth? What genre of music is the band Kraftwerk most associated with? Who is considered the greatest ruler of the Mauryan Empire and promoted Buddhism throughout India and beyond? In Valkyria Chronicles, players control soldiers from which fictional continent experiencing a war reminiscent of WW2? What popular Easter candy consists of malted milk balls shaped like miniature eggs?