The phoenix flew inside the mountain range, but before she could cross the first mountain, Eren stopped her.
"This should be enough. From this point onwards, there will be a flying restriction," he told the Phoenix, talking to her like a sentient being who could understand him.
The Phoenix could also feel danger as she was about to cross the first mountain in the range, but for Eren, she was willing to go through any danger.
"Are you concerned about me?" Eren asked, feeling a trace of her emotion. Although she couldn't say anything; as her master, he was able to sense her feelings.
"I will be back before you even know it," he said as he prepared to jump. "My life is the most precious thing. I won't let anyone take it from me."
He didn't say anything else, not wanting to raise a death flag for himself.
"Don't worry, little bird. I am with him. What could even go wrong?" Yelen chimed in, pretty confident in her abilities.