The invisible grip on my throat constricted harder, cutting off my air. I couldn't breathe. Spots danced before my eyes as I tried in vain to kick and punch the dark mage holding me. But each time I swung or thought I made contact, my fist or foot went right through his black cloak. It was like I was fighting the wind.

Spell after spell I heaved at him. Even the one I'd done on the bully, Darren, failed. My magic pricked across my palms like shards of ice, it rolled off me into ...