Legacy of the Sword is one of the weaker books in the series. There are just so many negative events that happen that sometimes it gets a little tedious.

Prince Donal, son of Alix and Duncan, is set to be heir to Carillon. He will be the first Cheysuli Mujhar in more than 400 years. But he doubts himself and he knows that many Homanans do not want him to assume the throne. 

Donal struggles with his Cheysuli identity and the need to be acceptable to the Homanans. He finds himself trapped between two worlds, yes, that's a trite way of putting it, but very true. He must marry Carillon's daughter by Electra to secure his place, but doesn't know if she can be trusted. He loves a woman from the Cheysuli clans, but the Homanans do not easily accept mistresses as the Cheysuli do.

Throughout the story, the characters get battered about in so many ways. Donal is betrayed by those he trusts. He does things he will live to regret.

If you're going to read the entire series, however, you really do need to read this book. This is one of those series where skipping a book makes reading the next one difficult.