Daniel Marsden was placed beside Robert Knight at Stepping Stones Primary on the first day of school by his father Declan Marsden, with the instruction to befriend Robert, stick close, and make people see what he was told to see. Daniel has long since transcended that origin. He is the closest thing to a second protagonist in Cambion — the person who witnesses everything, understands more than anyone accounts for, and arrives at conclusions that neither the adults around him nor the institutions they serve expected from a child.
He is the primary witness to the November 1995 schoolyard incident. He is the investigator who connects the Mammon coin pattern, dissects the Binsfeld taxonomy, works through the Nephilim hypothesis and crosses it out, tracks the disappearance clusters across a world map, and ends Book One with a single equation — Pink + Gold = ? — and an answer written in clean hard capitals beneath it. He is also the boy who, when he saw Robert’s hand pressed to the glass, pale and small, thought: He’s still Rob — and rode home pedalling hard enough that the cold air burned his lungs.