Maer Wilson's Portals is a great follow-up in her Thulukan Chronicles series. The stakes are higher as the danger from other beings and humans themselves become a threat to Thulu and La Fi.
A fan girl like me will be happy to know that we learn a lot more about Jones. Still delicious. Still amazingly awesome.
In Relics, Wilson made me want to play with unicorns. Now, in Portals, she'd made me want to watch Light Ones fly.
If you can't tell, I'm a huge fan of this book and I can't wait for the next one.