Thomas Bates out of money. During a secret meeting at Bath in August, at which he, Percy and Thomas Wintour were present, the plotters decided that "the company being yet but few" he was to be allowed to "call in whom he thought best". Bates was uncomfortable with the idea, and was the only member of the conspiracy to object. He was over-ruled however, and Catesby soon enlisted Ambrose Rookwood, Francis Tresham and Everard Digby. The last details of the plot were finalised in October. Guy Fawkes would light the fuse and then escape across the Thames, while simultaneously a revolt in
Robert and Thomas Wintour Tresham. The latter's involvement in the plot has long been the subject of controversy, as on 26 October his brother-in-law William Parker, 4th Baron Monteagle, received an anonymous letter while at home, warning him to stay away from Parliament. Thomas went with Catesby to confront Tresham on the matter, threatening to "hang him" if he did not exonerate himself. Tresham managed to convince the pair that he was innocent, but Thomas then tried unsuccessfully to persuade Catesby to abandon the plot. His pleas were in vain; Catesby's position was echoed by Percy, who at a meeting of the three in