On October 5, 2990 3A, at the age 60, she, alongside her husband and friends rebelled against the Ruffians, led by Bill Ruffin, that took over the Shire for nearly a month. Prisca refused to cooperate with the Ruffians' laws and fought against them when Gandalf arrived. Prisca fought in the Battle of Bywater and was killed by a Hill troll that swung its arm at her very hard.