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 (Jacobite) or assassinate William III. In February Thomas Prendergast, one of the conspirators, turned king's evidence, and the plot was revealed. On 27 March Rookwood was found in bed in a Jacobite alehouse, and committed to Newgate Prison. On 7 April a true bill of high treason was found against Rookwood at the Middlesex county sessions. He was brought before the King's Bench on 21 April. His case, tried with those of Robert Lowick and Charles Cranburn who was a Jacobite quartermaster, was the first treason trial to use the new system of procedure brought in by the Treason Act 1695,