GRAILQUEST Ⅰ・Ⅱ for iPhone 3GS, iPhone 4, iPhone 4S, iPod touch (3rd generation), iPod touch (4th generation) and iPad on the iTunes App StoreDescription I'm gonna use my magic to offer you a time limited discount until May 6th! It will be reduced from 1000yen to 600yen! The app version of the legendary game book "GRAIL QUEST" is now available! - It contains the two book titles "The Castle Of Darkness" and "The Den Of Dragons" which are 3,000yen worth by paper books. - Supervised by Mr. HUGO HALL the one of a kind book illustration arti
