You must escape to Obristan with all living family members. Start by illegally confiscating passports from Obristanian citizens and have one for each of your family members. At the end of Days 29, 30 and 31, you will need the required number of passports and 25 credits per family member ready. The maximum amount needed is six passports and 150 credits if the niece was adopted on Day 21 and everyone else is still alive. Do not escape alone or without your entire family. You can also intentionally kill all your family members except for one to make this easier. To do this, do not buy medicine for them and live without heat.