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When Herb was first introduced, Nikki was crying because she couldn't find her diary at school. Nikki locked herself in her locker, and when Herb passed, Herb didn't like the foul odor of Nikki's locker (because Nikki was in it). Herb opened the locker and screamed. But this was just in Nikki's imagination of what would happen if she were to lose her diary forever—not real life. Ever since this book, however, Herb has not been mentioned in the series. It has been inferred that the author made an error by changing Herb's name to Chuck in Dork Diaries: Tales From a Not-So Dorky Drama Queen when he had to clean up MacKenzie's vomit.