Down Cthulhu, The Occult Wars
At university, an avid sporting man. Box, marksman, forerunner of rugby, instrumental in bringing Indian game of lacrosse to England where there are now lacrosse clubs. (Percy may have played this a little.
Doubled in Philosophy and Physics. Combo of the 2 that caused him to want to understand the physical nature of time. In machine of his own construction trapped a billion years in the future after malfunction.
In that world, learns of old ones from deep history (from Numenera perspective aka our time and/or before and/or since.
Physically strong, not always best speaker or at persuasion.