"Fleur, you and Midnight need to learn to speak soon alright?" Walker gave Fleur a small pat on the head while also giving Midnight a slight smirk. He was most excited for them to learn how to speak themselves. Fleur was most likely going to be able to speak completely whereas a regular elemental spirit would be able to speak with mana only. It was mostly a feeling but with all the elemental mana combined in to natural mana, Walker couldn't imagine Fleur wouldn't be able to speak.
Midnight just needed more time. She had long heard the party speak but she had never spoken a word. It was foreign to her since she had just gained the ability to shift in to dragonkin form. But again, she needed to get used to that form first.