Here's a short story:

CHAPTER XIII. JAMES III. 

James II. left three sons; the eldest, James III., aged nine, was crowned at Kelso (August 10, 1460); his brothers, bearing the titles of Albany and Mar, were not to be his supports. His mother, Mary of Gueldres, had the charge of the boys, and, as she was won over by her uncle, Philip of Burgundy, to the cause of the House of York, while Kennedy and the Earl of Angus stood for the House of Lancaster, there was strife between them and the queen-mother and nobles. Kennedy relied on France (Louis XL), and his opponents on England. 

The battle of Towton (March 30, 1461) drove Henry VI. and his queen across the Border, where Kennedy entertained the melancholy exile in the Castle of St Andrews. The grateful Henry restored Berwick to the Scots, who could not hold it long. In June 1461, while the Scots were failing to take Carlisle, Edward IV. was crowned, and sent his adherent, the exiled Earl of Douglas, to treat for an alliance with the Celts, under John, Lord of the Isles, and that Donald Balloch who was falsely believed to have long before been slain in Ireland. 

It is curious to think of the Lord of the Isles dealing as an independent prince, through a renegade Douglas, with the English king. A treaty was made at John's Castle of Ardtornish--now a shell of crumbling stone on the sea-shore of the Morvern side of the Sound of Mull--with the English monarch at Westminster. The Highland chiefs promise allegiance to Edward, and, if successful, the Celts are to recover the ancient kingdom from Caithness to the Forth, while Douglas is to be all-powerful from the Forth to the Border!  (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: When was Edward IV crowned?
Guess: June 1461

Question: What happened in March of 1461?
Guess: The battle of Towton

Question: Who left three sons?
Guess: James II

Question: How old was Jame III?
Guess: nine

Question: When was he crowned?
Guess: August 10, 1460

Question: What was his mother's name?
Guess: Mary of Gueldres

Question: Who was her uncle?
Guess: Philip of Burgundy

Question: What was made at John's Castle of Ardtonrish?
Guess: a treaty

Question: Is the castle in good shape now?
Guess: no

Question: Where is it?
Guess: the sea-shore of the Morvern side of the Sound of Mull

Question: Who was one of James III's brothers?
Guess: Albany

Question: And the other?
Guess: Mar

Question: Who stood for the House of Lancaster?
Guess: the Earl of Angus

Question: And who else?
Guess: Kennedy

Question: Who was sent to make an alliance with the Celts?
Guess: Earl of Douglas

Question: Who was incorrectly thought to be slain in Ireland?
Guess: Donald Balloch

Question: Who did the Highland chiefs say they gave their alliance to?
Guess: Edward

Question: What were the Celts supposed to find?
Guess: the ancient kingdom from Caithness to the Forth

Now answer the following question in the same format.

Question: Who was going to be all-powerful?

Douglas