In the US edition 2 different scenes have been edited due to their explicit sexual content. Both sequences depict sexual encounters between a 7 year old boy and an adult woman in a Soviet gulag around 1948.
A total of 8 panels in 3 different pages have been altered: 7 of them have been completely re-drawn and the eighth one has been trimmed off, in order to eliminate all the explicit depictions of female nudity and the performance of sexual acts contained in the original version.
All these artwork modifications have been done by François Boucq himself.