The Norah McClintock Seven 2-Pack

This two-book set features Norah McClintock's Close to the Heel, from Seven (the series), and From The Dead (The Seven Sequels). In Close to the Heel, Rennie, who hardly knew his late grandfather, flies to Iceland to deliver a message from beyond the grave. The Icelanders he meets aren't exactly friendly, and they become even less so when Rennie unearths some secrets that put him in grave danger. Detroit, where Rennie goes in From the Dead, turns out to be as dangerous as Iceland when Rennie investigates whether his grandfather was a Nazi sympathizer or a hero.
Check out Slide by Norah McClintock (the Seven Prequels) and all the other books in Seven (the series), The Seven Sequels and The Seven Prequels.