Dak and his three dragon friends went to Hazard Island to get wood in order to feed the two baby Shriekscale Dragons. That island have strong unbearable winds, which are Grumblegard's breath. The rescue Riders went back to Huttsgalor to feed the baby dragons. Grumblegard came to have his revenge. The Rescue Riders called the Slinkwing Dragons to stop Grumblegard and they stopped him and go to his island to ruin it. The Rescue Riders freed Grumblegard and they will help him stop the Slinkwings. They stopped them. Back in Huttsgalor, Grumblegard shared his wood to the baby Shriekscales. He adopted the two baby Shriekscales, three Slobber Smelters and a Hideous Heatwing, since they liked him.
Appearance[]
Grumblegard is a Foreverhorn Dragon, which is a distant relative of a Foreverwing. That dragon has a long lifespan. Grumblegard is 275 years old. He also appeared aged, since he has wrinkly skin.
Personality[]
Before he met the Rescue Riders he was very territorial. He does not let others enter his island and he wanted to have his revenge on those who go to his island.
He later redeemed himself from his behaviors and he became more generous. He also likes taking care of baby dragons and he even adopted the ones the Rescue Riders have rescued.
