This year, the Town Clerk's office and part of the Exchange, at Newcastle, were burnt, and several of the deeds and writings of the corporation destroyed. 

From: T Fordyce, J. Sykes. Local records; or, Historical register of remarkable events which have occurred in Northumberland and Durham, Newcastle-upon-Tyne, and Berwick-upon-Tweed..., published 1867

King Charles I., at the head of a gallant army,  came to Newcastle, on his march against the Scotch covenanters. He came about the 5th of May, and continued in the town till the 17th of that month. He was received with great testimonials of duty and affection, and was magnificently entertained.

From: T Fordyce, J. Sykes. Local records; or, Historical register of remarkable events which have occurred in Northumberland and Durham, Newcastle-upon-Tyne, and Berwick-upon Tweed..., published 1867

On the 30th May, King Charles I joined his English Army of about 15,000 men at Berwick-upon-Tweed. Charles announced that he would not invade Scotland, as long as the Covenanter army remained 10 miles north of the border. Alexander Leslie, commanding the Scottish Covenanter army advanced to Kelso, within the 10 mile limit, but neither side was anxious to fight. 

On the 11th of June 1639, negotiations began between the English and the Scottish Covenanters. This ended with the Treaty of Berwick (aka the ‘Pacification of Berwick’) being signed on the 19th June. The treaty agreed to refer all disputed questions to the General Assembly, or Parliament of Scotland, for resolution. However, this was a short-term truce and both sides continued to prepare for war.