They come there without any adventures.
According to Jingo's calculations, last time he spent only 5 units of provisions, so he took them from Katarina, and in return, he gave her 3 crystals and the claws of Okonbry for safekeeping.
If the provisions (21 units) haven't spoiled during this time, then he's heading towards the mineral rivers. He doesn't forget to put on his dress...
Если где-то чего-то убудет, то в другом месте добавится.
(Закон сохранения).