Groups Joined by Polarpenter
| Members | Discussions | Books | Last Updated | |
|---|---|---|---|---|
  Stephen King - ITALIA by | 3,949 | 367 | 809 | about a year ago |
 George R. R. Martin Italia | 2,018 | 170 | 74 | 4 years ago |
 Amazing Readers | 2,082 | 44 | 808 | 3 years ago |
 Urania Mondadori by | 2,451 | 193 | 2,686 | 11 months ago |
  Americana contemporanea by | 7,643 | 471 | 4,011 | 5 years ago |
 Leggere Romanticamente & Fantasy | 6,215 | 490 | 5,950 | 5 months ago |
  Biblioteca stregata di Halloween by | 49 | 3 | 522 | 7 years ago |