Daddy's Gone a Hunting / Mary Higgins Clark / pages / USA Today Bestseller Challenge

Kate Connely is seriously injured when her family's antique museum and replication business explodes.  She is able to escape the fire and drag the injured Gus to safety, but Gus dies and Kate is in a coma.  Fire marshal investigators determine that the explosion was deliberately set.  Who is responsible?  Could Kate and Gus have conspired for revenge or insurance reasons?  Add to this mystery several missing girls, a homeless mentally ill decorated vet, and family secrets and you have a mesmerizing who-dun nit, another gem by the queen of suspense, Mary Higgins Clark.