When Spirou Washes (Quand Spirou Lessive in the original French) is a comic one-pager possibly written by Rob-Vel, and drawn by either him or Luc Lafnet. It features Spirou and Entresol.
Plot[]
Spirou hears of a "dirty rat" of a hotel thief and gets it in his head to catch him.
Behind the scenes[]
This one-pager was released on May the 19th, 1938 in Le Journal de Spirou #5 in Belgium. It was reprinted in the Spirou par Rob-Vel collection of all of Rob-Vel's Spirou comics. It has not known an official English printing to this day.
The French version.