the Oaken Door

The onslaught of Modred's forces may have been temporarily halted, but danger lurks around every corner for Myrddin and Nell. Not only do they face treachery on the part of their enemies, but allies--and even family too--cannot be trusted.
Only by joining forces can they succeed in averting the terrible fate that threatens their king, their country, and their own lives.
The Oaken Door is the second book in The Lion of Wales series.

Complete series reading order: Cold my Heart, the Oaken Door, of Men and Dragons, A Long Cloud, Frost against the Hilt.