Zack Files 05: Dr. Jekyll, OrthodontistPaperback, 13 January 1997

Zack isn't thrilled about having to get a tooth pulled, but a trip to the orthodontist proves a lot hairier than he ever expected. Nice old Dr. Silver has been replaced by the fang- toothed Dr. Jekyll, a mouthwash-guzzling mad scientist whose secret experiments have gone ker-plewy!