Sophie-Hans-Alex work till 5:30 a.m.
Once Sophie stayed with them too and worked till 5:30 am with her brother Hans and Schmorell. In that case, Sophie only told me that they had something to work on.
I certainly do not know what the three of them were doing. I also did not ask what they were doing those nights.
Source: Gisela Schertling’s interrogation dated March 29, 1943