hi zixin
in case of the saint cross,you find it in old mans dream in london,but you need few numbers of kandles for exploring london,think up to 12 candles to go through.
btw before make a new topic,read the walkthroughs and helps for that game,for there are the most big problems of the game written in, snowgloves white and saint crosses jag(later in the game),jack the ripper and so on.