- "You loved your brother very much. I can hear you, as children, trying to fall asleep in the same large room. Your brother sang to you at night, making you feel safe when you were frightened."
- ―Luke Skywalker to Isolder
Growing up, Kalen and Isolder were close, and Kalen would often sing songs to Isolder to comfort him when he was frightened. However, as Kalen grew older, his mother felt that he lacked the necessary skills to be a leader to his people.
In 2 ABY, Kalen was captured near the Terephon system by Harravan and his group of pirates. Instead of holding Kalen for ransom, the pirates murdered him. Overcome with grief over losing his brother and looking for a way to avenge him, this event triggered Isolder to go undercover as a privateer for two years to search for those responsible.
It was revealed to Isolder six years later that it was his mother who had orchestrated Kalen's death on political grounds.
Behind the scenes
- The Courtship of Princess Leia (First mentioned) (Indirect mention only)
- Young Jedi Knights: Shadow Academy (Indirect mention only)
- The New Jedi Order: Agents of Chaos II: Jedi Eclipse (Indirect mention only)
- The New Jedi Order: Dark Journey (Indirect mention only)
- Cracken's Threat Dossier
- The New Essential Guide to Characters
- The Official Star Wars Fact File 99 (ISO1, Prince Isolder)
- Star Wars: The Official Starships & Vehicles Collection 25
- Galaxy of Intrigue (Indirect mention only)