In the novels, Lethbridge-Stewart emerged from retirement again during the events of "The Dying Days" where he dealt with an invasion of Ice Warriors from Mars in 1997. At the end of that novel he was promoted to General. Lethbridge-Stewart was subsequently rejuvenated with alien technology in "Happy Endings" by Paul Cornell, taking place in 2010. The rejuvenated Lethbridge-Stewart, widowed as a result of an accident at sea but back with the military, next appeared in the BBC Books Eighth Doctor Adventures novel "The Shadows of Avalon", also by Cornell, where he still held the rank of General but preferred to be called "the Brigadier". According to "The King of Terror" by Keith Topping, Lethbridge-Stewart eventually passes away in the early 2050s.