Ka cika wannan magana: A shekara ta 1799, bayan ya yi hunturu a makarantar da ake haƙa ma'adinai a Freiberg, Aall ya koma ƙasar Norway. Bayan rasuwar mahaifinsa, ya saka dukiyarsa a cikin sayen babbar masana'antar ƙarfe ta Nes a yankin ma'adinan Arendal. Bayan sayen baƙin ƙarfe, aikin ya zama mafi inganci, amma an sanya shi a cikin mawuyacin hali a lokacin fashewar
Yaƙe-yaƙe na Turanci a 1801. Duk da haka, kasuwancin ya ci gaba.