Perkins's new novel is Fatal Family Ties.
At CrimeReads she tagged "seven books from all over the crime-fiction map where multiple family members are at the heart of each mystery," including:
The House in the Cerulean Sea, by T.J. KluneRead about the other entries on the list.
Found family and how they will rally around and support one another is the main theme of T.J. Klune’s magic-tinged fantasy novel, with just a touch of mystery. When mild-mannered Linus Baker of the Department of Magical Youth is sent to an orphanage on an island in the Cerulean Sea to investigate six unusual orphans who may have the power to bring about the end of days, his life will be forever changed. As he grows closer to the children as well as the mysterious Arthur Parnassus, the master of the orphanage who has a secret of his own, Linus will learn how the particular magic that is acceptance can bring love and a truly amazing new family along with it.
--Marshal Zeringue