How does Peter get the bread which Elli forgets to bring upstairs?
Peter goes down to the main office and "crouches in front of the door to make himself as small as possible and crawls towards the steel lockers...so as not to be seen from outside, gets the bread". After this he wants to disappear back into the annex, but Mouschi the cat has escaped and Peter cannot lure him back in. After trying and failing to retrieve the cat, Peter gives up and returns to the annex with the bread but without the cat.
(Diary entry Friday, 20 August, 1943)