It is bizarre! It's a completely different series.

I also used to read her Famous Five and Five Find-Outers series. My cousing and I admired Fatty's ("Dickie" in German) mad disguise skillz, and we would dress up in odd clothes, pait wrinkles on our faces with eyeliners and walk around the neighbourhood - preferably at dusk - convinced that we looked like old woman. Because hey - it worked for Fatty!