The legend most commonly associated with "Loch Lomond" is told here: Loch Lomond
In 1745, two soldiers, captured and thrown into Carlisle jail by English soldiers, one to be set free, the other to be executed. The old Celtic belief is that if you die away from your homeland, you return by an underground spirit route called the "low road." Those transported in death arrive home immediately, whereas the one on the high road will take many days to get home.