Number | Title | Published |
20 | The Haunted Cabin Mystery | 1991 |
21 | The Deserted Library Mystery | 1991 |
22 | The Animal Shelter Mystery | 1991 |
23 | The Old Motel Mystery | 1991 |
24 | The Mystery of the Hidden Painting | 1992 |
25 | The Amusement Park Mystery | 1992 |
26 | The Mystery of the Mixed Up Zoo | 1992 |
27 | The Camp Out Mystery | 1992 |
28 | The Mystery Girl | 1992 |
29 | The Mystery Cruise | 1992 |
30 | The Disappearing Friend Mystery | 1992 |
31 | The Mystery of the Singing Ghost | 1992 |
32 | The Mystery in the Snow | 1993 |
33 | The Pizza Mystery | 1993 |
34 | The Mystery Horse | 1993 |
35 | The Mystery at the Dog Show | 1993 |
36 | The Castle Mystery | 1993 |
37 | The Mystery of the Lost Village | 1993 |
38 | The Mystery of the Purple Pool | 1994 |
39 | The Ghost Ship Mystery | 1994 |
40 | The Canoe Trip Mystery | 1994 |
41 | The Mystery of the Hidden Beach | 1994 |
42 | The Mystery of the Missing Cat | 1994 |
43 | The Mystery on Stage | 1994 |
44 | The Dinosaur Mystery | 1995 |
45 | The Mystery of the Stolen Music | 1995 |
46 | The Chocolate Sundae Mystery | 1995 |
47 | The Mystery of the Hot Air Balloon | 1995 |
48 | The Mystery Bookstore | 1995 |
49 | The Mystery of the Stolen Boxcar | 1995 |
50 | The Mystery in the Cave | 1996 |
51 | The Mystery on the Train | 1996 |
52 | The Mystery of the Lost Mine | 1996 |
53 | The Guide Dog Mystery | 1996 |
54 | The Hurricane Mystery | 1996 |
55 | The Mystery of the Secret Message | 1996 |
56 | The Firehouse Mystery | 1997 |
57 | The Mystery in San Francisco | 1997 |
58 | The Mystery at the Alamo | 1997 |
59 | The Outer Space Mystery | 1997 |
60 | The Soccer Mystery | 1997 |
61 | The Growling Bear Mystery | 1997 |
62 | The Mystery of the Lake Monster | 1998 |
63 | The Mystery at Peacock Hall | 1998 |
64 | The Black Pearl Mystery | 1998 |
65 | The Cereal Box Mystery | 1998 |
66 | The Panther Mystery | 1998 |
67 | The Mystery of the Stolen Sword | 1998 |
68 | The Basketball Mystery | 1999 |
69 | The Movie Star Mystery | 1999 |
70 | The Mystery of the Pirate's Map | 1999 |
71 | The Ghost Town Mystery | 1999 |
72 | The Mystery in the Mall | 1999 |
73 | The Gymnastics Mystery | 1999 |
74 | The Poison Frog Mystery | 2000 |
75 | The Mystery of the Empty Safe | 2000 |
76 | The Great Bicycle Race Mystery | 2000 |
77 | The Mystery of the Wild Ponies | 2000 |
78 | The Mystery in the Computer Game | 2000 |
79 | The Mystery at the Crooked House | 2000 |
80 | The Hockey Mystery | 2001 |
81 | The Mystery of the Midnight Dog | 2001 |
82 | The Summer Camp Mystery | 2001 |
83 | The Copycat Mystery | 2001 |
84 | The Haunted Clock Tower Mystery | 2001 |
85 | The Disappearing Staircase Mystery | 2001 |
86 | The Mystery on Blizzard Mountain | 2002 |
87 | The Mystery of the Spider's Clue | 2002 |
88 | The Mystery of the Mummy's Curse | 2002 |
89 | The Mystery of the Star Ruby | 2002 |
90 | The Stuffed Bear Mystery | 2002 |
91 | The Mystery at Skeleton Point | 2002 |
92 | The Tattletale Mystery | 2003 |
93 | The Comic Book Mystery | 2003 |
94 | The Ice Cream Mystery | 2003 |
95 | The Midnight Mystery | 2003 |
96 | The Mystery in the Fortune Cookie | 2003 |
97 | The Radio Mystery | 2003 |
98 | The Mystery of the Runaway Ghost | 2004 |
99 | The Finders Keepers Mystery | 2004 |
100 | The Mystery of the Haunted Boxcar | 2004 |
101 | The Clue in the Corn Maze | 2004 |
102 | The Ghost of the Chattering Bones | 2005 |
103 | The Sword of the Silver Knight | 2005 |
104 | The Game Store Mystery | 2005 |
105 | The Mystery of the Orphan Train | 2005 |
106 | The Vanishing Passenger | 2006 |
107 | The Giant Yo Yo Mystery | 2006 |
108 | The Creature in Ogopogo Lake | 2006 |
109 | The Rock and Roll Mystery | 2006 |
110 | The Secret of the Mask | 2007 |
111 | The Seattle Puzzle | 2007 |
112 | The Ghost in the First Row | 2007 |
113 | The Box that Watch Found | 2007 |
114 | A Horse Named Dragon | 2008 |
115 | The Great Detective Race | 2008 |
116 | The Ghost at the Drive-In Movie | 2008 |
117 | The Mystery of the Traveling Tomatoes | 2008 |
118 | The Spy Game | 2009 |
119 | The Dog-Gone Mystery | 2009 |
120 | The Vampire Mystery | 2009 |
121 | Superstar Watch | 2009 |
122 | The Spy in the Bleachers | 2010 |
123 | The Amazing Mystery Show | 2010 |
124 | The Pumpkin Head Mystery | 2010 |
125 | The Cupcake Caper | 2010 |
126 | The Clue in the Recycling Bin | 2011 |
127 | Monkey Trouble | 2011 |
128 | The Zombie Project | 2011 |
129 | The Great Turkey Heist | 2011 |
130 | The Garden Thief | 2012 |
131 | The Boardwalk Mystery | 2013 |
132 | The Mystery of the Fallen Treasure | 2013 |
133 | The Return of the Graveyard Ghost | 2013 |
134 | The Mystery of the Stolen Snowboard | 2014 |
135 | The Mystery of the Wild West Bandit | 2014 |
136 | The Mystery of the Soccer Snitch | 2014 |
137 | The Mystery of the Grinning Gargoyle | 2014 |
138 | The Mystery of the Missing Pop Idol | 2015 |
139 | The Mystery of the Stolen Dinosaur Bones | 2015 |
140 | The Mystery at the Calgary Stampede | 2015 |
141 | The Sleepy Hollow Mystery | 2015 |
142 | The Legend of the Irish Castle | 2016 |
143 | The Celebrity Cat Caper | 2016 |
144 | Hidden in the Haunted School | 2016 |
145 | The Election Day Dilemma | 2016 |
146 | The Doughnut Whodunit | 2018 |
147 | The Robot Ransom | 2018 |
148 | The Legend of the Howling Werewolf | 2018 |
149 | The Day of the Dead Mystery | 2018 |
150 | The Hundred-Year Mystery | 2019 |
151 | The Sea Turtle Mystery | 2019 |
152 | Secret on the Thirteenth Floor | 2019 |
153 | The Power Down Mystery | 2019 |
154 | Mystery at Camp Survival | 2020 |
155 | The Mystery of the Forgotten Family | 2020 |
156 | The Skeleton Key Mystery | 2020 |
157 | Science Fair Sabotage | 2020 |
158 | The Great Greenfield Bake-Off | 2021 |
159 | The Beekeeper Mystery | 2021 |
160 | The Mystery in the Magic Shop | 2022 |
161 | The Raptor Rescue | 2022 |
162 | The Code-Breaking Mystery | 2023 |