|In 283 AC, King's Landing
|A Storm of Swords (mentioned)
Garigus, together with Wisdoms Rossart and Belis, took part in King Aerys II Targaryen's wildfire plot, the plan to destroy the capital, during Robert's Rebellion. According to Ser Jaime Lannister, Garigus was as enthusiastic about the plan as the other two pyromancers. The three secretly deployed wildfire caches across the whole city, to be ignited at the command of King Aerys. Their constant consultations with the king, both day and night, made the Hand of the King, Lord Qarlton Chelsted, suspicious, leading to him confronting the king.