All traces of habitation were soon left behind, as the pursuers and their questing bloodhound penetrated among the dusky mountains, entering on a wild and silent region of sterile magnificence, above which towered the double cone of Ben More.
On they went, through the lengthened expanse of a glen that lay between two chains of barren hills, at the base of which a river, rushing among fragments of detached rock, foaming over precipices and plunging into deep dark pools, swept onward to mingle its waters with the Dochart. The dog went forward unerringly.
The hoof-marks of the hastily-driven cattle were occasionally seen among the ferns, the crushed leaves, the bruised stems and twigs of the wild bushes; but for a time these traces were lost when they entered on a great expanse of deep soft heather, broken only here and there by a pool of boggy water, which shone whitely in the light of the waning moon: it was a tract of vast extent, and all of a dun, dark hue.
Afar off, in the distance, rose the hills of Glenorchy; and now, being somewhat wearied by the long and arduous pursuit, Rob Roy and his men sat down beside one of those great grey stones which stud the Scottish hills and moorlands, marking either the site of a Druid's altar, an old battlefield, or a forgotten warrior's grave. On consulting his watch, Rob found the hour was midnight, and that they had travelled about twenty miles, over a road of unparalleled difficulty.
A dram from Greumoch's hunting-bottle revived them a little, and then MacAleister led the bloodhound in a circuit round the stone to find the scent again. These great tracts of heather are frequently to be met with in Scotland, and concerning them a singular tradition lingers in the Highlands.
It is said that the Pictish race were celebrated for brewing a pleasant beverage from the heather blossom, and that they usually cultivated great tracts of level muir for this purpose, carefully freeing them of stones.
On the extinction of their monarchy, and the fabled extirpation of the whole race by Kenneth II., King of the Scots, after the battle of the Tay, two Picts became his prisoners, a father and his son, who alone knew the secret of manufacturing this beverage.
Urged by promises of liberal reward, continues the tradition, the father consented to reveal it, on condition that first they slew his son, whom a Scottish warrior thereupon shot through the heart with an arrow.
"Now," said the stern Pict, "do your worst; for never will I be prevailed upon to disclose a secret known to myself alone."
A second arrow whistled through his heart, and the secret perished with him.