I liked this book better than any other in the series I have read so far. We see a lot more of Astro asking what animals are and why they are white etc. Astro really plays a part in this story. One complaint (I’m sorry I can't help it). Astro didn’t know what a Polar Bear was to begin with, so how does he know he needs to change his skip into a boat to see things in/on the water?