Cayden is escorted inside the FireMoon House by Lee. He hadn't realized how much he missed it until now. Every house has its own scent, and FireMoon is no exception. It's distinct and characteristic of the home he spent his entire life in. He's never leaving this place again, not ever.
Lee isn't having a hard time supporting him. He's half the size he was a moon ago. He caught his reflection in the lake when they passed through it and he couldn't recognize himself. No wonder Mia looked horrified when she saw him in that cell, rotting like an animal.