Graças ao link sugerido por Sean Duggan, pude descobrir que o livro era Waywalkers por Catherine Webb.
Sam Linnfer works part time at a London University. He's a quiet chap. A few friends here and there. A real skill for ancient languages. And an affection for cats. He's also immortal and the Son of Time. You might know him better as Lucifer, Old Nick, or the Devil . And with all the Gods in Heaven about to go to war over ownership of Earth, you're going to be extremely glad he's not exactly the person history portrays him to be. Waywalkers is an absolutely stunning new novel. You'll come face to face with Jehovah on a cold Moscow night, walk the Ways between Earth and Heaven with Buddha, take a hair-raising cab ride with Adam (yes, THE Adam - only he's into denim now, rather than fig-leaves) and find yourself trusting the one person you never dreamed you would. In a war between Gods, where Earth is the battle ground and humans are expendable, you'll need to have more than just sympathy for the Devil.