In Diko's world, humans live symbiotically on skyscraper-sized, branchless Hometrees, long believed the friends of mankind. Yet when a man named Rantham arrives at the village, he tells Diko sinister stories about the Hometrees which contradict everything Diko has been taught. After a disastrous hurricane and the suspicious deaths of some of the villagers, and his best friend suffering a horrible fall, Diko must choose whether to believe his father's benevolent view of the Hometrees and become the next Treespeaker, the most important person in the village, or to listen to Rantham's more diabolical views and embrace a new group of allies. His choice has terrible, far-reaching consequences, and leads to his exile as a patricide and Outleaf, banished forever to the very top of the Hometree. Now he must escape his prison with the help of an elusive avian, confront the liar and true murderer in his village, and try to redeem himself--even if it costs his life--for the alternative is the genocide of an entire race.
Killer Trees. Where have I heard that before?
Now, the idea of living in a tree has a certain appeal but "branchless"?? That just boggles the mind.
Start again with the hook template (#239) and ..err...branch out from there.