Amish Nanny's Promise by Amy Grochowski

She’ll do what it takes to keep his family together…

When her dearest cousin passed, Fern Beiler made her a promise — to look after her two young children and keep her memory alive. The obvious solution is a marriage of convenience to their father, widower Nick Weaver. But when spending time together causes lines to blur, can two childhood friends overcome feelings of guilt for a chance at happiness...together?