Since Zane and the girls first found her, Maya had been watching them all very carefully. She of course, kept a close eye on Zane. Her reasons for doing so were her own, and nobody but she could understand why.
Though she was young, Maya was far more intelligent than people gave her credit for, unnaturally so. And while everyone assumed she was mute, she could actually speak, and quite articulately at that, well beyond that of someone her age normally should be capable of.
She simply chose to remain silent and observe what was going on. Though her reasons were known only to her, she had decided to drive a wedge between Zane and the girls that surrounded him. It was obvious that Zane did not like her very much; he seemed to have a dislike of children in general.