| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1985 | 978-0-908961-01-6 | Barry Rumsey Smith | Second Warning |
| 1989 | 978-0-908961-02-3 | '' | Final Notice |
| 1980 | 978-0-908961-03-0 | '' | Warning |
| 1985 | 978-0-908961-04-7 | Barry Smith | Postscript |
| 1996 | 978-0-908961-05-4 | Barry Rumsey Smith | Better Than Nostradamus |
| 1999 | 978-0-908961-07-8 | '' | I Spy |
| 1998 | 978-0-908961-08-5 | '' | The Devil's Jigsaw |