An anxious night was passed, for the Parliamentarians expected Newcastle to renew his attempts to regain his forts and cannon, but the Marquis had suffered heavily, and, taking council with his officers, resolved to abandon the siege, and retire under cover of the night. His main army retired upon York, securing the retreat by breaking down bridges and obstructing the roads. The men of Hull rejoiced in the capture of two famous cannon, Gog and Magog, a demi-culverin, four small drakes mounted on one carriage, two large brass drakes, and a saker. The burghers spent the following day in public thanksgiving, and thus observed the anniversary of their deliverance until the restoration of the Stuarts. XIX.--THE BATTLE OF SELBY. A.D. 1644. In 1644 King and Parliament were so closely matched that any accession of strength to either party would tend to the speedy conclusion of the conflict. When, on the 4th of March, the Earl of Leven occupied Sunderland with 30,000 Scots, reinforcements for Parliament, the greatest concern was felt by all good Cavaliers, and the Marquis of Newcastle promptly brought up his Yorkshire Royalists, and held Leven at bay. In this strait Sir Thomas Fairfax was ordered to the North to reinforce the Scots with cavalry, and enable them to engage the King's men. Lord Fairfax joined his son near Hull, and, augmenting his forces, it was resolved to attack Selby, which was defended by barricades, and garrisoned by a strong force of foot and horse under the command of Colonel Bellasis, the son of Lord Falconberg. On the 11th of April, 1644, the Parliamentarians advanced to the storm. The army was formed into three divisions, commanded by Lord Fairfax, Sir John Meldrum, and Colonel Bright. Sir Thomas Fairfax supported with his cavalry.