Scourge of the Invisible Death (Complete Novel)
| First published | November 1935 |
|---|---|
| Type | Serial |
Publications (2)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| November 1935 | Secret Service Operator #5, November 1935 | Popular Publications, Inc. | MAGAZINE | 10 |
| October 1980 | Operator #5, November 1935 | Dimedia / Pulp Press | Anthology | 10 |