This is the part at the end of chapter eight when all seventhousnd jews are being taken away to death camps and Yanek is left by himself his parents are gone .
This is the part when Yanek is taken back to the ghetto to clear everything out of the flats. He goes up to the pigeon coop puts on his dads coat and feels the pockets that his mom sewed in the inside to hold their Zloty. He hides it in his uniform and shows uncle Moshe when he gets back.
This is when they first arrived at the salt mine and the Nazi told them not to get lost in the mine because its very large and dark. Also there will be nothing to eat and drink except salt.