Tintin and Alph-Art

Herge attempted one final Tintin adventure but died before it could be completed in 1983. The adventure was set in the world of Modern Art and reflected Herge's interest in avant-garde artwork. The uncompleted adventure has been released several times but never in a completed form.

Yves Rodier (a Canadian artist) produced a pirated verson of the adventure which was originally drawn and printed (privately) in black-and-white, a color version was produced a few years ago. You can find a copy of Rodier's version here.