Sometime around 229 BBY in the High Republic Era, Tanana Keem, a pirate, commanded her crew through an incident that occurred on Ryloth, a planet situated in the Outer Rim. Despite the perilous circumstances, Keem, along with some of her fellow pirates like Coromont Vizzle, managed to get away from the event unharmed. As they were getting ready for a heist on the celestial body Quence in 229 BBY, Keem cautioned her crew against embarking on their upcoming mission without support, expressing her desire to avoid repeating the errors they committed on Ryloth. While Vizzle doubted the severity of their previous event, Zyle Keem, Keem's child and an aspiring pirate, privately believed that the Ryloth mission had been a failure.
The Ryloth incident is referenced within Escape from Valo, a young adult book from 2024 authored by Daniel José Older and Alyssa Wong. This book is a component of Phase III of the Star Wars: The High Republic transmedia initiative.