- 1Who Knows?
- 21 — Rob’s Workshop
- 32 — The Demon of Electricity
- 43 — The Three Gifts
- 54 — Testing the Instruments
- 65 — The Cannibal Island
- 76 — The Buccaneers
- 87 — The Demon Becomes Angry
- 98 — Rob Acquires New Powers
- 109 — The Second Journey
- 1110 — How Rob Served a Mighty King
- 1211 — The Man of Science
- 1312 — How Rob Saved A Republic
- 1413 — Rob Loses His Treasures
- 1514 — Turk and Tatar
- 1615 — A Battle With Monsters
- 1716 — Shipwrecked Mariners
- 1817 — The Coast of Oregon
- 1918 — A Narrow Escape
- 2019 — Rob Makes a Resolution
- 2120 — The Unhappy Fate of the Demon
The Master Key
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