20. Magic Tree House Fact Tracker : Baseball
21. Magic Tree House Fact Tracker : WORLD WAR II
22. Magic Tree House Fact Tracker : Heroes for All Times
23. Magic Tree House Fact Tracker : Horse Heroes
24. Magic Tree House Fact Tracker : Pandas and Other Endangered Species
25. Magic Tree House Fact Tracker : Abraham Lincoln
26. Magic Tree House Fact Tracker : Dog Heroes
27. Magic Tree House Fact Tracker : Snakes and Other Reptiles
28. Magic Tree House Fact Tracker : Rags and Riches
29. Magic Tree House Fact Tracker : Leprechauns and Irish Folklore
30. Magic Tree House Fact Tracker : Ghosts
31. Magic Tree House Fact Tracker : Vikings
32. Magic Tree House Fact Tracker : China
33. Magic Tree House Fact Tracker : Wild West
34. Magic Tree House Fact Tracker : Soccer
35. Magic Tree House Fact Tracker : Sharks and Other Predators
36. Magic Tree House Fact Tracker : Dogsledding
37. Magic Tree House Fact Tracker : Dragons And Mythical Creatures
38. Magic Tree House Fact Tracker : Ninjas And Samurai
应该是换过出版社,最新的目录是这个。