Deep mysteries: Twist, by Colum McCann, reviewed

On the first page of Colum McCann’s compelling novel Twist we meet the two leads: John A. Conway, who has disappeared, and Anthony Fennell, who’s trying to tell his story. They first met when Fennell, an Irish journalist, struggling novelist and occasional playwright, was commissioned by an online magazine to write about the fragile fibre-optic cables that carry information around the world on the ocean floor.