Peter Buckle 
Crystals [EPUB ebook] 

‘…Ben shivered and looked with horror at what he saw. Before his eyes, the water in the lake slowly receded and an icy wind whistled through the window… He could not believe what was happening-everything was disappearing. The lake was a dry hollow, the meadows had become barren and the trees stood before him stripped of their leaves and bark. The sky darkened and then everything turned white and he could see a figure standing alone on the frosted ground…’Ben, a young adult, aware of his strange origins and power, finds himself at the epicentre of a terrible cataclysmic fight for Earth’s survival as we know it. He must advance his powers to save the world and develop his human compassion to win over the most reluctant of allies.