Assassin`s Quest by Robin Hobb. The Farseer Trilogy Book 3

An enthralling conclusion to this superb trilogy, displaying an exceptional combination of originality, magic, adventure, character, and drama.Kirkus Reviews (starred review)

King Shrewd is dead at the hands of his son Regal. As is Fitzor so his enemies and friends believe. But with the help of his allies and his beast magic, he emerges from the grave, deeply scarred in body and soul. The kingdom also teeters toward ruin: Regal has plundered and abandoned the capital, while the rightful heir, Prince Verity, is lost to his mad questperhaps to death. Only Veritys returnor the heir his princess carriescan save the Six Duchies.
 
But Fitz will not wait. Driven by loss and bitter memories, he undertakes a quest: to kill Regal. The journey casts him into deep waters, as he discovers wild currents of magic within himcurrents that will either drown him or make him something more than he was.
 
Praise for Robin Hobb and Assassins Quest
 
Fantasy as it ought to be written . . . Robin Hobbs books are diamonds in a sea of zircons.George R. R. Martin
 
Superbly written, wholly satisfying, unforgettable: better than any fantasy trilogy in printincluding mine!Melanie Rawn