Around 0 ABY, the female Wookiee Mallatobuck sent her husband Chewbacca a thought wave while he was en route to Kashyyyk, warning him their son Lumpawarrump was in danger. When he received the message, Chewbacca jumped up from his copilot seat in the Millennium Falcon and let out a gigantic roar, which frightened his captain and friend Han Solo.