Hapna! - May 1955
- Legion of Space · Jack Williamson
- Eldballongerna · Ray Bradbury
- Old Doctor Methuselah · René Lafayette AKA L. Ron Hubbard
- The Only Way Out · William F. Temple
Reader Department consists of reviews, new club, and an article about Conan the Barbarian by Björn Nyberg. The first thing that was written about Conan in the Swedish press.
Hapna! - October 1955
- Donovan's Brain Part 1 · Curt Siodmaks
- Foundation Part 2 · Isaac Asimov
- Loophole · Arthur C. Clarke
- The Expensive Slaves · René Lafayette AKA L. Ron Hubbard
Hapna! - December 1955
- Donovan's Brain Part 3· Curt Siodmaks
- Doctor and Her Majesty (Her Majesty's Aberration) · René Lafayette AKA L. Ron Hubbard
- Trade Princes · Isaac Asimov
Hapna! - April 15 1957
- Rymdsatellitens Enigma Part 5 · Charles Eric Maine
- Plague · René Lafayette AKA L. Ron Hubbard
- Children's Division · Raymond F. Jones
- Star · Arthur C. Clarke
Hapna! - November 1958
- On Heaven's Back · Arthur C. Clarke
- The Higher Ideal · Alan Guthrie
- A Can of Vacuum · L. Ron Hubbard
- Over Time Limits · Chad Oliver
Hapna! - May 1959
- Second Foundation Part 4 · Isaac Asimov
- Playmates · Niels Nielsen
- Bracelet · Arthur C. Clarke
- Old Mother Methuselah · René Lafayette AKA L. Ron Hubbard
Hapna! - September 1961
- The Witches' Daughters · Robert A. Heinlein
- A Bucket of Air · Fritz Leiber
- Assignment of Space · Chad Oliver
- Message From the Future · Isaac Asimov
- Star Salesperson · Niels Nielsen
- The Man From the Stars · John Christopher
- Beyond Time and Space (Beyond All Weapons) · L. Ron Hubbard