8 books • 2 series
Uncle John's Bathroom Puzzler: Big Bad Word Search
Uncle John's Monumental Bathroom Reader (Uncle John's Bathroom Readers)
Uncle John's Bathroom Reader Plunges into Minnesota (Bathroom Readers)
Uncle John's Bathroom Reader Plunges into Hollywood (Bathroom Readers)
Uncle John's Bathroom Reader Plunges into New Jersey (Bathroom Readers)
Uncle John's Slightly Irregular Bathroom Reader
Uncle John's Bathroom Reader Plunges into the Universe
Uncle John's Fourth Bathroom Reader