The rear divisions, Tromp's and Jeremy Smith's ships, did not follow the general movement, for Tromp had never quite lost the advantage he had gained in the opening stage of the battle. He kept his ships under shortened sail, and hammered away doggedly at the Blue Division. This was the moment when Monk might well have either reinforced Smith, or turned with all his force on Tromp, and overwhelmed and destroyed his squadron. It was made up of twenty-five line-of-battle ships and six frigates, and its loss would have been a heavy blow to Holland. But on sea as on land there was still little of the spirit of ordered combination. Just as Rupert at Marston Moor had destroyed the opposing wing of the Roundheads with a fierce charge of his cavaliers, and then pursued, without a thought of using his advantage to fall upon the outnumbered and exposed centre of the enemy, so now Monk and Rupert pressed upon De Ruyter and Evertszoon, though Tromp was at their mercy, and Smith was in serious peril. Thus the engagement broke into two separate battles as the summer evening drew on. Darkness ended the fight, and in the night the wind fell almost to a calm. Sunrise on the 26th showed the fleets drifting in disorder on a smooth sea, with their heavy sails hanging loose from the yards, only filled now and then by disappointing flaws of wind. The crews were busy repairing damages and transferring the wounded to the lighter craft. All day the only shots fired were discharged by a couple of brass toy cannon mounted on a pleasure yacht which Rupert had brought with him. Taking advantage of a mere ruffle of wind, so light that it could not move the big ships, the Cavalier Prince ran his yacht under the stern of the huge flagship of De Ruyter, and fired into him. The Dutchman had no guns bearing dead aft, and the Prince was able to worry him for a while, till there came one of those stronger gusts of wind that filled the sails of the "Seven Provinces," and she swung round, showing a broadside that could blow the yacht out of the water. But before a gun could be fired the yacht, with all sails spread, was racing back to the English fleet, and Rupert returned to the "Royal Charles" as pleased as a schoolboy with his frolic.