Can love be shield, sword, and healing balm for this troubled couple?

White Oak (Heartwood 1): Mike Delaney, a sheltered nineteen year old, is hired to assist Aidan Kelly, a blind high school senior with a rainbow for every occasion. But the man who tormented Mike will stop at nothing, including murder, to ensure his silence.

Black Mahogany (Heartwood 2): When Rick Hanlon, the man who molested Mike as a teenager, escapes justice, Aidan will stop at nothing to keep his lover safe, but Mike can't let go of his self-recriminations or share his nightmares with Aidan.

Yew (Heartwood 3): Mike and Aidan have raised a daughter together. Now they're looking to foster a second child. But fear and prejudice are even more dangerous enemies than Hanlon, the man who molested Mike when he was a teenager.

Thorn (Heartwood 4): Hanlon is not the only threat to Mike and Aidan's happiness. From within their marriage, old arguments and insecurities rear their ugly heads. Can Mike and Aidan's marriage survive?