Grandpa Abe (Abraham Portman)
Gradpa Abe was Jacobs Grandfather, but he was killed by a hollow in the beginning of the book (Dr.Golan). I think that Grandpa Abe is an important character because he is the one who insured Jacob to go to Wales and find more about his past. Abe went to the loop that was ran by Ms.Peregrin when he was young, the same one that Jacob finds. He stayed there for most of the war but then left to fight in it. After the war was over he didn't go back to the loop to live with the peculiar children but when to America to start a new life.