Edward Vernon Sparhawk was able to evade capture in Quebec likely due to his involvement with the Canadian Times, a newspaper that was critical of the government. According to the search results, particularly from Wikipedia, Sparhawk and his associate Ariel Bowman were arrested for libel, but while Bowman was apprehended and held briefly before escaping, Sparhawk managed to evade capture entirely. This evasion could be attributed to the support network he had, the nature of the political climate at the time, or his own resourcefulness. Unfortunately, there is no specific detail on the exact methods he used to avoid capture. The Canadian Times was eventually shut down in June 1824, as referenced in a study on Samuel Hull Wilcocke's "The Scribbler". Sparhawk's evasion of capture seems to be a part of a broader pattern of resistance against government oppression during that period.