Tiffany Aching is a trainee witch - now working for the seriously scary Miss Treason But when Tiffany witnesses the Dark Dance - the crossover from summer to winter - she does what none has ever done before and leaps into the dance, into the oldest story there ever is, and draws the attention of the wintersmith himself As Tiffany-shaped snowflakes hammer down on the land, can Tiffany deal with the consequences of her actions?