Glass Figures

The players come across a village where the whole area has been turned to a variety of brightly coloured glass. Trees, houses, the crops and even the villagers themselves have become smooth clear glass each in variety of bright colours, making the small village look a like a demented glassware stall. The figures are so perfect that the players can easily tell who they are, although some have been broken and lie in shattered pieces. Who would do such a thing to a village in the middle of nowhere and can the players bring it back to its original form?