Robert and Thomas Wintour the continent and again failed to elicit Spanish support, but instead met Guy Fawkes, with whom he returned to England. Robert, a devout Catholic who inherited Huddington Court near Worcester, joined the conspiracy the following year. The plot began to unravel following the delivery of an anonymous letter to William Parker, 4th Baron Monteagle, warning him to stay away from Parliament. Thomas and Catesby confronted Monteagle's brother-in-law, the recently recruited Francis Tresham, threatening to kill him, but Tresham managed to convince them of his innocence. At that stage Thomas reportedly asked Catesby to abandon the scheme, to no avail. When
Guy Fawkes January 1606, Fawkes and three others – Thomas Wintour, Ambrose Rookwood, and Robert Keyes – were dragged ("i.e.", "drawn") from the Tower on wattled hurdles to the Old Palace Yard at Westminster, opposite the building they had attempted to destroy. His fellow plotters were then hanged and quartered. Fawkes was the last to stand on the scaffold. He asked for forgiveness of the King and state, while keeping up his "crosses and idle ceremonies" (Catholic practices). Weakened by torture and aided by the hangman, Fawkes began to climb the ladder to the noose, but either through jumping to his death