The Prayer Box

Not sure if this is the right fit?

Consider Christmas at Carnton by Tamera Alexander.

“Christmas at Carnton is a compact, Christian historical romance novella that pairs a wounded soldier and a recently widowed mother against the backdrop of the Confederacy's decline. It delivers cozy domestic scenes, clear religious convictions, and a tidy emotional resolution—good for a single-evening, seasonal read. Main value is mood and hopeful sentiment; main limitation is brevity and reliance on familiar romance and devotional tropes, which can feel predictable or underdeveloped to readers wanting denser historical texture or complex moral conflict.”