There's no chapter about the other child because they'll be meeting and staying together very soon :]
And at another final place the Alpha and Luna of the nearby pack were wondering why their young boy hadn't shifted. They wondered if maybe his wolf was too strong for his body and it was waiting for a time when his body could support it.
The book seems really well written with several possibilities as to where it could go. The characters seem interesting each with there own backstory. I would actually enjoy a history chapter