Cardcaptor Sakura: Clear Card Vol. 5 (manga)

Sakura finally has a date with her darling Syaoran! She’s working hard to make the perfect picnic lunch for him, but on the big day, a strange message arrives, calling Sakura away to her great-grandfather’s home. Then, Sakura’s late mother appears to her again–perhaps bringing with her the answers to the questions about the hooded figure from Sakura’s dreams, and the beginning of the solution to the mystery of the transparent cards themselves …