Falling

The rope incinerated. Kai's weight dropped. Any strand of conscious thought that he'd had were gone in a flash as he fell. He felt his body ignite without his command - it must've been his core speaking, his heart. [After all, he'd always lived by emotion hadn't he?]
His flames led him to Cole, just below him. Their bodies crashed together, and anyone watching from the Bounty rail would only see one thing.
A flaming ball of pure fire being swallowed by darkness.

In other words, my recreation of Season 10's heart-stopping Episode 3. Cole falls, but Kai falls with him, leading them on a desperate journey through the darkness - injuries and all - to find their family again.