I don't know everything got really messed up. They would say Gibbous dis things not in his character then when he got mad no one seemed to care. He hated Eclipse and the next thing Ebony is calling her mom and no one realizes Gibbous was the kind caring gentle wolf unless he was mauling two legs and people thought of him as a pushy mean wolf the Eclipse did that horrible thing and gave him the down side. Any person would have been driven mad if that was real and Gibbous was driven, right off the cliff. I actually was going to make it so he didn't die and landed on a tiny edge that was an entrance to a cave where he would stay a few days until everything calmed down then return to the pack his mind clear and try sort things out with Eclipse. But I have made it so Gibbous is dead.
Don't forget Ebony isn't the only thing Eclipse has of Gibbous. She has that tummy load of pups that she practically stole from him ;)