The Wizard of Waramanga

Frankenstein 200 Dare-winning author Renoir launches his not-too-serious urban fantasy series with a story that tips its hat to H P Lovecraft, Douglas Adams and the Aussie Outback!
After too many whiskys and a blow to the head, seemingly ordinary office worker John B. Stewart discovers he's a wizard (or else has an extraordinary gift for coincidence). He stumbles onto a bizarre plot that threatens the whole planet Earth. After repeated attempts on his life he heads from Canberra to a secret base in the South Australian desert, accompanied by three mismatched friends and an overweight Persian cat.
Armed with courage, determination, a few antique weapons, a bottle of Scotch and John B.'s dubious magic, they must do battle with a mad sorceress, angry soldiers and an ancient terrifying evil that may consume the entire world.
No wonder he needs a drink...