Genie in Training

"When Jamie's gran gives him a battered old teapot he reckons she's gone doolally! But then he cleans it, and out pops Balthazar Najar, a banished genie! Balthazar grants three wishes, but for the last one, Jamie accidentally wishes he was a genie. He's whisked off to genie school where an angry headmaster, a suspiciously friendly snake and deadly magic carpet races are the least of his worries!"