The Second Edition of Robert Linus Koehl's 2012 Novel. Mark Cohen wasn't just the most unpopular kid in the seventh grade. He was the most unpopular kid in his school's history. He had no friends. He was beaten-up every day. His life sucked. But this was about to change. Tsipporah L. "Zippy" Dagan was a pre-teen immigrant from the Middle-East with a secret which would soon explode Mark's world, flinging him into the adventure of a lifetime. Robert Linus Koehl's series, "M-Gang Chronicles," tells the story of a group of children who have been chosen for a special task: to operate the world's only underage anti-terrorism assassination team. Zippy is the first novel in this series, which explores such timely topics as bullying, violence, and hatred. It is not for the faint of heart.