Airborn post 2

Ok, so the book is really good. I haven't had many chances to read because of ski practice and what not. But what I have read has been pretty good. Anyway, the book skips forward to a year later and Mat Cruse is on another voyage to Sydney. They lift off and soon a couple passengers in a strange flying machine are requesting a landing. They were very important so they do a BA landing and get the passengers aboard. It turns out that it’s a girl named Kate and her chaperone. She is about Mat's age and she is cool but her chaperone is just annoying. He soon finds out that she is the granddaughter of the man who they rescued a year earlier and she has come on the ship to see the "winged creatures" that her grandfather supposedly saw. She gives Mat her grandfather's journal to read and it says that he saw animals that are always flying and never touch the ground. They have fur instead of feathers, they look like cats with wings, and they even give birth in the air. Later he talks to her about it but he is skeptical because near the end stuff became inconsistent and the grandfather started making drawings of the birds with different faces and stuff and it looked more like he was going crazy than anything. She thinks he's totally wrong but they don't get too mad over it. That’s all I've read so far. I'm excited to find out more on these creatures and if they are actually real.