641.The Prelude to AdventureHugh Walpole[wiki]
642.Salads, Sandwiches and Chafing-Dish DaintiesJanet McKenzie Hill[wiki]
643.Both Sides the BorderG. A. Henty[wiki]
644.The Silent HouseFergus Hume[wiki]
645.The Terrible TwinsEdgar Jepson[wiki]
646.The Boss of the Lazy YCharles Alden Seltzer[wiki]
647.The Danvers Jewels, and Sir Charles DanversMary Cholmondeley[wiki]
648.Dave Porter at Star RanchEdward Stratemeyer[wiki]
649.The Two-Gun ManCharles Alden Seltzer[wiki]
650.The Admirable TinkerEdgar Jepson[wiki]