Boxcar children
1. The boxcar children
2. Surprise Island
3. The yellow house mystery
11. Caboose mystery
15. Bicycle mystery
28. The Mystery Girl
The Boxcar children investigate a mysterious employee at Jerry Taylor's general store.
30. The disappearing friend mystery
31. Mystery of the singing ghost
32. The mystery in the snow
33. The pizza mystery
34. The mystery horse
35. The mystery at the dog show
36. The castle mystery
37. The mystery of the lost village
39. The ghost ship mystery
40. The canoe trip mystery
41. The mystery of the hidden beach
42. The mystery of the missing cat
43. The mystery on stage
44. The dinosaur mystery
45. The mystery of the stolen music
46. The chocolate sundae mystery
47. The mystery of the hot air balloon
48. The mystery bookstore
49. The mystery of the stolen boxcar
50. The mystery in the cave
51. The mystery on the train
52. The mystery of the lost mine
53. The guide dog mystery
54. The hurricane mystery
55. The mystery of the secret message
57. The mystery in San Francisco
58. The mystery at the Alamo
59. The outer space mystery
60. The soccer mystery
63. The mystery at Peacock Hall
64. The black pearl mystery
65. The cereal box mystery
66. The panther mystery
67. The mystery of the stolen sword
68. The basketball mystery
69. The movie star mystery
70. The mystery of the pirate's map
71. The ghost town mystery
72. The mystery in the mall
Henry, Jessie, Violet, and Benny are happy to share their home with Katya, the young gymnast, and watch her practice for the big competition. When things start going wrong at the gym it quickly becomes clear that someone is trying to ruin Katya's chances of winning—but who? The Aldens want to help. The trouble is, Katya's been acting a little mysterious herself—almost as if she's got something to hide. But what? Can the Boxcar Children
...Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather, and an exciting new exhibit to explore—from behind the scenes—at their local zoo. But disaster strikes when a pair of rare ferrets is stolen. The two huge California condors are the thief's next target. The Aldens quickly decide that the animals are being taken by someone that works in the zoo. But how do they stop a thief
...75. The mystery of the empty safe
76. The great bicycle race mystery
77. The mystery of the wild ponies
78. The mystery in the computer game
79. The mystery at the Crooked House
80. The hockey mystery
81. The mystery of the midnight dog
82. The summer camp mystery
83. The copycat mystery
84. The haunted clock tower mystery
85. The disappearing staircase mystery
86. The mystery on Blizzard Mountain
87. The mystery of the spider's clue
88. The mystery of the mummy's curse
89. The mystery of the star ruby
90. The stuffed bear mystery
91. The mystery at Skeleton Point
92. The tattletale mystery
93. The comic book mystery
94. The ice cream mystery
95. The midnight mystery
96. The mystery in the fortune cookie
97. The radio mystery
98. The mystery of the runaway ghost
99. The finders keepers mystery
100. The mystery of the haunted boxcar
101. The clue in the corn maze
102. The ghost of the chattering bones
103. The sword of the silver knight
104. The game store mystery
105. The mystery of the orphan train
106. The vanishing passenger
107. The giant yo-yo mystery
108. The creature in Ogopogo Lake
109. The rock 'n' roll mystery
110. The secret of the mask
111. The Seattle puzzle
112. The ghost in the first row
113. The box that Watch found
114. A horse named Dragon
115. The great detective race
116. The ghost at the drive-in movie
117. The mystery of the traveling tomatoes
118. The spy game
119. The dog-gone mystery
120. The vampire mystery
121. Superstar Watch
122. The spy in the bleachers
123. The amazing mystery show
124. The pumpkin head mystery
125. The cupcake caper
126. The clue in the recycling bin
127. Monkey trouble
128. The zombie project
129. The great turkey heist
130. The garden thief
131. The boardwalk mystery
132. Mystery of the fallen treasure
133. The return of the graveyard ghost
134. The mystery of the stolen snowboard
135. The mystery of the Wild West bandit
137. The mystery of the grinning gargoyle
138. The mystery of the missing pop idol
139. The mystery at the Calgary Stampede
140. The Sleepy Hollow mystery
141. The legend of the Irish castle
142. The celebrity cat caper
143. Hidden in the haunted school
144. The election day dilemma
145. The doughnut whodunit
146. The robot ransom
147. The legend of the howling werewolf
148. The Day of the Dead mystery
The Aldens are spending spring break on a beach, but they aren't just soaking up the sun. They're protecting an endangered species! Their job is to mark sea turtle nests so the eggs can be moved to a safe place to hatch, but someone is digging up the eggs without permission. Can the Boxcar Children figure out what's going on and help save the sea turtles?