The Puppet King — Douglas Niles

Treason within, war from without.

Torn asunder by the nightmares of a mad king, the elven realm of Silvanesti has nearly been restored to its former grandeur. But the elf Porthios, returning to his homeland, launches a rebellion against young Gilthas, his own nephew.

Gilthas's troubles are multiplied by threats from green dragons and from the Knights of Takhisis. Now, with Porthios at his throat, Gilthas must choose between blood and honor.