For thousands of years, Cross has wandered the earth, a mortal soul trapped in the undying body left behind by Christ. He' s been a thief, a con man, a soldier and a drunkard. He' s fought as a slave in the Colosseum and as a knight at King Arthur' s side. But now he must play the part of reluctant hero, as an angel comes to him for help finding the Mona Lisa-- the real Mona Lisa that inspired the painting. Cross' s quest takes him into a secret world within our own, populated by characters just as strange and wondrous as he is: gorgons and dead gods hidden away in museums; faeries that live in countryside pubs, trapping and enslaving unwary travellers; and super-rich collectors who trade magical artifacts among themselves. He' s haunted by memories of Penelope, the only woman he truly loved, and he wants to avenge her death at the hands of his ancient enemy, Judas, a forgotten god from an ancient time. The angel promises to deliver Judas to Cross, but nothing is ever what it seems when Judas is involved, and when a group of renegade angels looking for a new holy war show up, things truly go to hell.