"the history of the lord of the rings" reveals much of the slow, aggregative nature of tolkien's creativity. as christopher tolkien noted of the first two volumes, tolkien had eventually brought the story up to rivendell, but still "without any clear conception of what lay before him". he also noted how, on the way, his father could get caught up in a "spider’s web of argumentation" - what tom shippey described as getting "bogged down in sometimes strikingly unnecessary webs of minor causation". thus (for example) the character eventually known as peregrin (pippin) took was, in a series of rewriting and of deleted adventures, variously known as odo, frodo, folco, faramond, peregrin, hamilcar, fredegar, and olo – the figures also being boffins and bolgers, as well as tooks.