In Winter's ShadowBook - 2011
"As powerful enemies attack the throne from inside the kingdom, Arthur, his queen, and his greatest warrior Gwalchmai will be put to the ultimate test. Never faltering in her loyalty to the king, Gwynhwyfar has stood at Arthur's side through rebellion and war. But one desperate decision could cost her all they've built. With the kingdom crumbling around them, following the Queen's heart could be the greatest threat of all..."--P.  of cover.
Publisher: Naperville, IL : Sourcebooks Landmark, 2011
Characteristics: 410 p. : map ; 20 cm