When I first typed in Moniek Fuks' name, a boy with the same name came up in the search results. His date of birth, February 15th, 1930, matched the age range of boys that attended his school, #13B (born between 1926-1931).
Also during my research I noticed that a boy named Moniek Checinski also came up with the exact same birthday as Moniek Fuks (and same addresses). Checinski is a Polish last name, so it's possible that Moniek Checinski was changed to Moniek Fuks (a German last name) when Germany took over Poland.
It is unknown where Moniek moved from on October 23rd, 1943, however, it is very possible that he moved from Cegielina to Buchbind, because Cegielina is a Polish name (pre-war) and Buchbind is a German name (wartime).
When I looked at the Prisoner Lists from Forced Labor Camps and searched Moniek Fuks, a boy with the same name appeared. However, this boy's birthday was Februrary 8th 1932 as opossed to the research I found above with the birthdate Februrary 15th, 1930. It is possible that they are both the same boy, but there is not enough information to prove it certain. Moniek Fuks (birthdate: 1932) was born in Kozienice and sent to Czestochowa: Prisoners at Hasag Pelcery Labor Camp. His card number was 3850 and his line number was 1204. From the research I found on Czestochowa, around 1,600 Lodz Jews, primarily young men and women, to Częstochowa in the Radom District of the General Government on March 4 and 10, 1944. Another 80 people may have arrived in Częstochowa from Lodz on May 3, 1944. The camp's conditions were brutal and a lot of prisoners died. Those who had survived, were sent to Buchenwald, Gross-Rosen, and Ravensbrück on January 15th and 16th, 1945.
Moniek Fuks's fate is unknown at this point.