High in the rugged Pyrenees lies the Valley of the Storms, where a tiny convent clings to the beautiful but lonely mountainside. Jenny Silver arrives seeking her missing cousin, and is devastated when she learns of Gillian's death following a terrible car accident.
But Jenny's suspicions are aroused when she's told the blue flowers ornamenting her cousin's grave were Gillian's favourite. Jenny knows Gillian was colour-blind - and so starts her mission to uncover what really happened to her.
The growl and roar of thunder rolled an re-echoed from the mountains and the sword of the lightning stabbed down, and stabbed again, as if searching through the depths of the cringing woods for whatever sheltered there.