And although the Parliament, in its resentment at the king's treachery at Brentford, had vowed never to treat with him again, in March, 1643, it made fresh overtures to him. The deputation sent to him consisted of the Earls of Northumberland, Pembroke, Salisbury, and Holland, Viscounts Wenman and Dungarvan, John Holland and William Litton, knights, and William Pierpoint, Bulstrode Whitelock, Edmund Waller, and Richard Winwood, esquires. They were received by the king in the garden of Christ Church, and permitted to kiss his hands. On Waller performing that ceremony, Charles said graciously, "You are the last, but not the worst, nor the least in my favour." In fact, Waller at that moment was engaged in a plot for the king, whence the significant remark. As the two parties insisted on their particular demands, the interview came to nothing. Courteous as the king was to Waller, he was otherwise by no means so to the deputation. The queen was in the country with abundant supplies of arms and ammunition, and he was elated with the fact. He interrupted the Earl of Northumberland so rudely and so frequently, whilst reading the Parliamentary proposals, that the earl stopped, and demanded proudly whether his majesty would allow him to proceed. To which Charles replied curtly, "Ay! ay!" The negotiations continued for several weeks, but during their abortive proceedings military movement was going on. Essex took Reading after a siege of ten days, and Hampden proposed to invest Oxford and finish the war at once, which Clarendon confesses would have done it, for the town was ill fortified, was so crowded with people that it could not long hold out, and Charles had not then received his ammunition from the queen. The dilatory spirit of Essex, however, and his officers prevailed, and this opportunity was lost. In May the ammunition arrived, and whilst Charles was preparing to act, the Parliament was busy in unravelling different plots against them. One was that in which Waller was engaged. This was a most daring one. Waller had been one of the most determined declaimers in Parliament against the king; but now he had been won over by Lord Falkland, and had entered into a scheme for betraying London to the Royalists, and seizing the leaders of the opposition. Mixed up with this scheme, besides himself, were Tomkins, his brother-in-law, Challoner, Blinkhorne, and others. A commission of array was smuggled into the City through Lady Aubigny, whose husband fell at Edge Hill, by which all inclined to the king's service might receive due authority. But the servant of Tomkins overheard the conspirators, carried the news to Pym, and they were speedily in custody. Tomkins and Challoner were hanged within sight of their own houses; Blinkhorne, White, Hasell, and Waller were, by the intercession of Essex, reprieved, but Waller was fined ten thousand pounds and confined in the Tower for a year.