'I was an agent of Dan, a captive of his, really. I went where he wanted me, and did as he wanted, and for a long time, in this way, I was happy.' It's been a long winter in a creaky house in Brunswick, where a young man has devoted himself to recreational showers, staring at his phone, and speculating on the activities of his best friend and housemate, Dan. But now summer is coming, and Dan has found a boyfriend and a job, so the young man is being pushed out into the world, in search of friendship and love. The Adversary is a sticky summer novel about young people exploring their sexuality and their sociability, where everything smells like sunscreen and tastes like beer, but affections and alliances have consequences. It asks what kinds of stories are possible - or desirable - for which kinds of friendships, and what happens when you follow those stories to their natural conclusions.