Toshimitsu Konno's "Covert Investigation" Series - 4 Paperback Book Set I love Toshimitsu Konno's mystery novels and have read many of them. They are all masterpieces that you can read in one sitting. [Set Contents] Covert Investigation 5: Leadership (Sairyo) ko-42-56 Covert Investigation 5.5: Awareness (Jikaku) ko-42-57 Covert Investigation 6: Future (Kyo) ko-42-58 Covert Investigation 7: Moonlit Residence (Seigetsu) ko-42-59 They have been handled with care and are in relatively good condition, but they are used books stored at home. Please understand. (650)