Books like Dearest neighbour by Mollie Chappell

Sinda Shull, burdened by a hidden past, cannot imagine marriage until she moves next door to widower Glen Olsen. As Glen’s neighborly kindness pulls her in, their daughter Tara and a skeptical detective threaten to keep the sisters apart.

From amazon dot com: *Miss Dorothea Balfour was nearer seventy than sixty, but there was something childlike about her . . . She felt rather like a child, a lost, bewildered child, and she was doing what Belle had always objected to so strongly: staring out of the window at 'those rather odd persons next-door' . . .* Shy, uncertain Miss Balfour is still finding her way after the sudden death of her domineering sister Belle, who-following a failed marriage many years ago-had returned home and made a career of brow-beating her meeker sibling (her memorable final words were 'Don't be a fool Dottie'). But Dorothea soon begins exploring her newfound freedom, observing and then becoming happily enmeshed in the doings of her neighbours, the widowed Mrs. Lenox and her five unusual and charming children, with whom Belle had always forbidden contact. Domestic challenges, romantic difficulties, and efforts to aid a painter's abandoned family-all are facilitated by Dorothea's calm intelligence. And before long she has drama of her own, from her spontaneous rescue of an endangered child to her encounter with Belle's long-lost husband, from whom she learns some surprising secrets.

A fox moves in with a hare who needs to retrieve his home.

In South Boston, a young mother vanishes from her home while her four‑year‑old daughter remains a lone witness. Detective Sergeant D. D. Warren dives into a tense investigation, questioning the seemingly normal couple and the growing media storm.