I must say how disappointed I am that this book is out of print and difficult to find. As other's have said, this is one of my favourite and most memorable books from my childhood. Not only is it a cute and funny story but it gives children several important messages: follow your dreams, respect others that are different, find your own niche in the world, be careful when building structures using temperature sensitive materials in rapidly changing climates, etc.
I began looking for a copy of it a year and a half ago, without success. I ended up writing a jazz tune called "Pablo's Journey" (I'm a jazz composer). I hope that it will soon be back in print. I now have a 14-month old son and I would like to get a copy for him.