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
Ambrose Rookwood inciting a popular revolt to install James's daughter, Princess Elizabeth, as titular Queen. To this end he had already helped enlist nine Catholics into the conspiracy, but was running out of money and needed to recruit more men. Rookwood was a horse-breeder, and his stable of fine mounts at Coldham Hall was needed for the Midlands uprising. He had been asked to supply them with gunpowder about a year earlier, under the pretence that it was for William Stanley's regiment in Flanders—no longer an illegal operation due to the recent Treaty of London—but otherwise provided no funds for the conspiracy.