Pentagram (original) / The Gatekeepers (US) / The Power of Five
Series title in German is: Die fünf Tore
Titles (5)
| # | Title | Author(s) | Year | Type |
|---|---|---|---|---|
| 1 | The Devil's Door-Bell | Anthony Horowitz | 1983 | |
| 2 | The Night of the Scorpion | Anthony Horowitz | 1984 | |
| 3 | The Silver Citadel | Anthony Horowitz | 1986 | |
| 4 | Day of the Dragon | Anthony Horowitz | 1989 | |
| 5 | Oblivion | Anthony Horowitz | 2012 |