Cardcaptor Sakura Book 3

Now that Sakura has proven herself as a magician, she finds that there are other unnatural forces threatening her town . . . forces linked somehow to two mysterious transfer students who've just arrived--one attracted to her brother, the other attracted to her! Li and Sakura may be friends now instead of rivals, but if there's a rival for Sakura's affections, is he going back to Hong Kong . . . ?