The only thing worse than a dead parent is a dead business venture. Organic, grass-fed, polyculture farmed ice is worth its weight in silver, but it takes a hefty investment (and a fair bit of luck) to corner the market. You need ships, you need guides, you need sled dogs, you need carvers and haulers and storage facilities; and on top of all of that, you need a cover story and fake shipping manifests, so you can dodge the ice taxes.
And that's just the tip of the iceberg. Because once you get the ice, then you need to figure out how to sell it without drawing the wrong kind of attention. Your product needs to be good, but it can't be too good. It needs to be cheap, but it can't be too cheap. And if you screw it up, the Ice Mafia will do more than just rough you up or skim your profits. They play for keeps.
If you aren't careful, they might turn your idyllic merchant life into a pretext for adventuring.