The Problem with Magic and Fantasy

I, Robert Smart, had given my girlfriend Sara Dean two cruise tickets, One for herself and one for a lady friend. This turned out to be a great mistake, as Sara gave the second ticket to a man, Alex Rich.
It turned out, that Robert's boss, Burt Knight was into magic, and wanted Robert to learn what he knew himself. Burt let Robert borrow his book about magic. Robert loved the book and learned a lot about magic. Then Burt introduced Robert to a witch named Elvira, and a second witch named Lorna.