Trio : Rebels in the New World
1. Traitors from Within (1990)
2. Crossing Enemy Lines (1990)
3. Almost Lost (1990)
4. The Hidden Evil (1990)
5. Escape from China (1990)
6. Deadly Encounter (1990)

Choose Your Own Adventure
2. Journey Under the Sea (1977)
4. Space and Beyond (1979)
10. The Lost Jewels of Nabooti (1981)
     aka The Lost Jewels of Nafouti
11. Mystery of the Maya (1981)
13. The Abominable Snowman (1982)
15. House of Danger (1983)
17. The Race Forever (1983)
20. Escape (1983)
24. Lost on the Amazon (1983)
25. Prisoner of the Ant People (1983)
29. Trouble on Planet Earth (1984)
37. War With the Evil Power Master (1985)
61. Beyond Escape (1987)
66. Secret of the Ninja (1987)
72. The Brilliant Dr. Wogan (1988)
76. The Mona Lisa Is Missing! (1988)
78. Return to Atlantis (1988)
83. Track of the Bear (1989)
87. Exiled to Earth (1989)
90. Mutiny in Space (1989)
94. Blood on the Handle (1990)
96. Stock Car Champion (1990)
98. You Are a Millionaire (1990)
103. Grave Robbers (1990)
109. Chinese Dragons (1991)
111. Smoke Jumper (1991)
115. The Island of Nevermore (1991)
117. The Search for Aladdin's Lamp (1991)
121. Behind the Wheel (1992)
123. Silver Wings (1992)
125. Outlaw Gulch (1992)
129. Earthquake! (1992)
139. Motocross Mania (1994)
143. Project UFO (1993)
145. Everest Adventure (1994)
153. Last Run (1994)
157. U.N. Adventure (1995)
159. Tattoo of Death (1995)
161. Possessed! (1995)
165. Snowboard Racer (1995)
167. Moon Quest (1995)
169. Terror on the Titanic (1997)
171. Death in the Dorm (1996)
173. The Gold Medal Secret (1996)
177. Killer Virus (1997)

Skylark Choose Your Own Adventure
1. Circus (1981) (with Edward Packard)
2. The Haunted House (1981)
4. Your Very Own Robot (1982)
8. Indian Trail (1983)
28. Fire! (1985)
31. Lost Dog! (1986)
36. The Owl Tree (1986)
38. Sand Castle (1986)
39. Caravan (1987)
43. Home in Time for Christmas (1988)
47. Spooky Thanksgiving (1990)
49. Race of the Year (1989)

Choose Your Own Super Adventure
2. Danger Zones (1988)

Choose Your Own Adventure, Passport
3. On Tour (1992)
5. Mystery on the Trans-Siberian Express (1992)

Choose Your Own Nightmare
4. Castle of Darkness (1995)
10. It Happened at Camp Pine Tree (1996) (with Janet Hubbard-Brown)