127 books • 31 series
The Long-Lost Secret Diary of the World's Worst Engineers (The Long-Lost Secret Diary Of The World's Worst)
The Long-Lost Secret Diary of the World's Worst Viking (The Long-Lost Secret Diary Of The World's Worst)
The Long-Lost Secret Diary of the World's Worst Samurai (The Long-Lost Secret Diary Of The World's Worst)