A woman called wren Callahan restoration architect Rebuilds condemned and heritage buildings for a living . Raised by a single father warm , exacting, terrible at asking for help, herself. She rebuilds everyone walls but not her own. Believes love , like building she doesn’t trust that she can be wanted without being useful first. She fell in love with a man called kestrel Ambrose reclusive owner of marrow house, who doesn’t make anyone important to him because of his past betrayal.