The final book in the The Tethered World series and I’m still torn over whether this is the best one. At the very least it’s a toss up between this book and the first book. The Genesis Tree starts out with the threat of the Tethered World being exposed to the world up top. Very quickly things get complicated and our main heroes, Sadie and Brady get separated to go their own paths to help protect their friends and family. The feel of this final book is very different from the first two. This story hones in all the growth and how far the characters have come so far and then throws…