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
Ambrose Rookwood he implored the group to stop their "wicked actions", before himself fleeing. Rookwood was proclaimed a wanted man on 7 November. He went to confession and with the rest of the group took the sacrament—in Fraser's opinion, a sign that none of them thought they had long to live. Through pouring rain they rode to Hewell Grange, helping themselves to further arms, ammunition and money, and finally reached Holbeche House, on the border of Staffordshire, at about 10:00 pm that night. Tired from three days of riding, they spread in front of the fire some of the now-soaked gunpowder taken