I read parts of a book called the 'Catholic Apostolic Church' which was about the movement with Irving that grew out of the movement where the Scottish girl prophesied. It denied the idea that Darby got his theory from her prophecy. I looked up Margaret McDonald's prophecy and it did mention 'secret rapture' if I recall correctly in the version I read, but it didn't seem to be used in a context that we would call 'the rapture.' And you could interpret it to refer to the Pentecostal movement coming in the future, I suppose. It has been years since I found that prophecy online. Also, the author of that book, apparently a descendant of someone in the movement or a relative, pointed out that the Catholic Apostolic Church did not believe in the pre-trib rapture. What happened was that around the 1830's, a charismatic and influential preacher with the last name of Irving believed in the baptism of the Holy Spirit with speaking in other tongues. He heard of tongues and or/prophesying being done by this young Scottish girl, Margaret McDonald and possibly others. It broke out in his church. There were tongues and interpretation and prophesying.One of the men prophesied to a man there, Are you not an apostle? Between prophecies and apostles appointing other apostles, they ended up with 12 members of a Gentile apostolate. Most of them were British aristocrats. One who wasn't was a chemist (pharmacist?). The most influential figure probably was Drummond, an aristocrat who was in the House of Lords in England. He believed in apostolic succession, and that apostles were necessary for coming into the unity of the faith. At some point, the Presbyterians kicked Irving out over some issue related to whether Jesus could sin or whether He was doing His works out of His deity or out of the power of the Spirit. The latter view is also a Pentecostal view nowadays. Irving was accused of having said that Christ had 'sinful flesh' or something along those lines. The 'apostles' visited various countries in Europe. The brought back and developed an elaborate liturgy. Irving was in the role of 'angel', which I think was their word for traditional 'bishop' based on their interpretation of Revelation 2-3. They had priests, deacons, and subdeacons, in addition to their 'apostles.' Fairly early on in the movement, Irving died. I read they had about 5000 people in their movement at one point. There was a splinter group in Europe when someone prophesied someone else into being an apostle. The main group in the UK disagreed and the German group became a separate movement. The UK group died off because they never appointed new apostles. Members went to other liturgical churches. The last of their so-called apostles, if I recall correctly, died in 1901, a few months after the Topeka outpouring. The German group continues on. They have 'apostles', but I don't know if they were Charismatic otherwise. They don't believe in sermon preparation, and use the apocrypha. I get the impression than the UK group were into imitating 2nd century Christianity and historical practices after the first century. They get their name from a creed. Their 'apostles would 'seal' certain preachers from other denominations, including the RCC, by laying hands on them to give them a new kind of apostolic succession.It kind of started off Pentecostal and ended really liturgical. The Charismatic manifestations seemed to take a back seat over time. At least, they weren't really part of the liturgy if I recall correctly, but they may have allowed gifts in home groups