AFTER SOLEIL died, Kalel Nystrom went to the garden to meet the Great Fire Tree.
Actually, he just wanted to confront the tree and asked it how he'd be able to follow Soleil Rosenberg in her next life. But he got something better than confronting the Great Fire Tree that betrayed them for Aku/Auro Moonchester.
And after gaining something beneficial from the garden, he froze it with his ice power.
"Until the end, Soleil is one step ahead of me," Kalel whispered to himself after he planted a branch of the Great Fire Tree. To be precise, it was the branch that Soleil purified when she "burned" the whole tree. "I should have known that the Great Fire Tree has been corrupted when it started siding with Auro Moonchester when it was supposed to be neutral."