| Issue | #211 |
| Published | May 1973 |
| Cover Price | 0.20 USD |
| Pages | 36 |
| Editing | Roy Thomas |
| Notes | Possible Verpoorten cover credit provided 2006 by Nick Caputo. |
| Characters | Thor; Ulik |
| Synopsis | Thor vs trolls |
| Genre | Superhero |
| Pencils | John Buscema |
| Inks | John Buscema?; John Verpoorten? |
| Notes | Possible Verpoorten cover credit provided 2006 by Nick Caputo. |
| Reprinted | in Mitico Thor, Il (Editoriale Corno, 1971 series) #121 |
| Characters | Thor; Ulik; Ulla; Geirrodur; U-Slyn (I); Tyborr (I); Tyg'r (I); Edwin Jarvis; Warriors Three [Hogun; Fandral; Volstagg]; Silas Grant; Tana Nile |
| Genre | Superhero |
| Script | Gerry Conway |
| Pencils | John Buscema (layout); Don Perlin (finished art) |
| Inks | Vince Colletta |
| Colors | Petra Goldberg |
| Letters | Artie Simek |
| Notes | First appearances of U-Slyn, Tyborr and Tyg'r. |
| Reprinted | in Mitico Thor, Il (Editoriale Corno, 1971 series) #121 |