How should I start my book?

Grolack's long and wrinkled finger pulls a crusty wad of snot from his nose. He puts the mucous chip in his mouth and chews on it with a look of satisfaction. He is an average troll, content to live a life of mischief and sloth. The place he calls home is in the hollowed out remains of a tree, lying within the dying woods of Decolax.