This is the first book I've read of this authors...& I did receive a free copy in advance from Netgallery to review. So these opinions are totally mine with no bias! 
 Two siblings are separated during WW I and have just recently discovered they are related. So you have the sibling attempting to acquaint each other with themselves and their families. While doing this they are working on a garden and stumble upon a Skelton next to a fighter plane. As they attempt to solve who the body belongs to their are many twists as it appears someone or many, don't want the body identified.