In a few days a strong force was collected at Alnwick; but, though chafing at the news of the terrible devastations, that were being made by the Scots in Cumberland and Durham, the Earl and Hotspur could, at present, do nothing. The invasion was, indeed, one of the most disastrous that had ever taken place; and after having almost devastated the two counties, Douglas, with the united force, and an enormous train of waggons laden with plunder, great quantities of cattle, and other spoil, turned north again, at the end of the second week of September.

In the meanwhile, Percy's force had been steadily growing. He had early resolved that upon the return of the Scots the battle must be fought, and contented himself with sending small bodies, of well-mounted knights and horsemen, to hover in the neighbourhood of the Scotch army; and to keep him informed of their intentions, and the route they seemed disposed to take.

Douglas had carried his devastations up to the walls of Newcastle, but had not attempted to attack that strongly-defended town. He had, indeed, gathered as much spoil as could possibly be taken along; and he moved north in a quiet and leisurely way, being greatly hampered by the enormous train of loaded waggons.

As soon as the Earl of Northumberland and his son saw that he intended to march up through Northumberland, instead of returning by the line that he had come through Tynedale, they set their force in motion and marched out; leaving a sufficient strength to hold Alnwick, should Douglas attack it. Being joined, two days later, by the Earl of Dunbar, they posted themselves in a position whence they could march to intercept the Scots, upon any road they might follow on their way north.

On the 12th, they learned for certain that the Scots were following the road that would take them through Wooler. Moving instantly, the Earl with his forces came up to them, posted on a hill, a mile to the northwest of Homildon. He at once seized a hill facing it, and disposed his knights, men-at-arms, and spearmen along the crest.

Hotspur would straightway have charged down, and attacked the Scots in their position; but Dunbar put his hand on his bridle, and urged him, strongly, to await the assault; and to provoke the Scots into taking the offensive by galling them with his archers, in which he was far superior to them; while, on the other hand, they were much stronger in spears and horsemen.

Hotspur, seeing the goodness of the advice, assented to it; and ordered the archers to descend, at once, into the valley between the two hills; and to launch their arrows against the Scots. On descending, it was found that the Scottish bowmen were already in the valley. These they speedily drove up the hill, and then sent their arrows thick and fast among the Scottish men-at-arms.

Douglas had, like the Earl of Dunbar, perceived at what disadvantage the party who took the offensive would have to fight; and had determined to stand on the defensive, especially as, if he moved forward, the English could detach bodies of horsemen to work round the hill, and fall upon his immense train of waggons.

For a time, he refused to accede to the earnest entreaties of his knights to advance. But as man after man fell under the English arrows, their impatience increased; until one of his best knights, Sir John Swinton, rode a few paces out of the ranks, and in a loud voice said:

"My brave comrades, what fascinates you today, that you stand like deer and fawns in a park to be shot; instead of showing your ancient valour, and meeting your foes hand to hand? Let those who will descend with me and, in the name of God, we will break that host and conquer; or if not, we will at least die with honour, like soldiers."