The Subtle Knife is the second part of the trilogy that began with The Golden Compass . That first book was set in a world like ours, but different. This book begins in our own world. 3drXabCXCsyVpQUNIu1AzPyiIqZxC4hMlLa07LB6qJ4W1YpwWBNiD1PI37Ac7TVk