In the book Cue for Treason what part in does Kit Kirkstone do some thing brave?

In the book "Cue for Treason" by Geoffrey Trease, Kit Kirkstone performs several brave acts. One significant instance occurs when Kit bravely infiltrates the house of Robert Catesby, the leader of the Gunpowder Plot, to retrieve vital evidence. Despite the considerable risk involved, Kit disguises himself and sneaks into Catesby's house, narrowly avoiding detection by Catesby and his associates. This act of courage and resourcefulness is crucial to uncovering the plot and preventing a significant act of treason against the English crown.