Excellent! This is my favourite Muchamore book since Cherub, it might even be the best. It's mature, insightful and riveting. I was engaged from the very beginning and found the contrasts and similarities between the two main characters' lives fascinating. I loved seeing the progression of the characters in terms of their stories and lives but also their emotional and moral progression. This book raises some really interesting political and social points regarding campaigning, activism, engagement and action. Of course, it also looked at mental health in a brutally honest way which felt especially insightful and poignant when you read about Muchamore's own struggles. This book was absolutely engaging and I would highly recommend reading it.