Why Brown should desire a revival of pro-slavery aggressions, if he intended to leave the neighborhood; and what he intended to do, are important questions in this analysis which his versatile biographers have failed to attempt to explain. Brown could not have desired a provocation from the pro-slavery people because he wanted an opportunity to fight--to march against them at the head of the "Liberty Guards," and "stagger the slave-power by the driving force of his iron will;"--for he intended to leave the neighborhood; he intended to go away from the scene of the prospective aggressions. He was no longer "Captain of the Liberty Guards," but a private citizen; therefore, he must have desired an outbreak of pro-slavery hostility for personal reasons; for reasons relating to operations which he intended to engage in with Henry Thompson as an associate; who wrote, equivocally, to his wife in May, 1856, that "Upon Brown's plans would depend his own, until School is out." [Illustration: John Brown] The operations that Brown and his four unmarried sons and Henry Thompson engaged in immediately after the letter containing this extract was written, show that the "plans" therein referred to related to the capital tragedy in the history of Kansas Territory. These plans provided for the theft of a large number of horses on Pottawatomie Creek. The horses were duly stolen by Brown and his band. To make the theft possible, and personally safe, they planned to quietly assassinate the owners of the horses. To avoid identification, and to dispose of the horses which they intended to steal, they planned to deliver them to confederates, who would run them out of the neighborhood; and, at the same time, they were to receive from such confederates horses of a more desirable character--fast running horses--which were to be brought from the northern part of the Territory to a designated rendezvous.