Elfhome. Book 3 in the Elfhome series. Looks fantasy but is really SF. Elves, dragons... all real. Living on different worlds/dimensions. Technology links them all.
Tinker (Elfhome, Book 1): How Earth and Elfhome are linked. Not fantasy at all, brilliant SF and a great story.
Wolf Who Rules (Elfhome, Book 2): Invasion blocked, colonists missing, Pittsburg stranded on Elfhome. Great SF series.
Now is the perfect time to develop the structural integrity of your Book Fort!
I Dare (Liaden Universe Novel Series) by Sharon Lee and Steve Miller. This is one of my favorite books of the series, but DON'T start here.
Bujold, Lois McMaster - The Paladin of Souls (2005 PB) 2nd in the series following Curse of Chalion. I loved this book.
... I guess you could consider this a problem. I guess. On the other hand, my desire to declutter is helping me finally READ some of these books so I can send them off to new homes.
Frost Burned (Mercy Thompson Series #7)
Magic Bites (Kate Daniels Series #1) [NOOK Book] byIlona Andrews