"Riddle of the Frozen Ghost Town!"
Added by mlopinto
Collected in 1
| Title | Number | Date | Format | |
|---|---|---|---|---|
 | "The Challenge from 5700 A.D.!" Vol. 1 (6) #20 | Vol. 1 (6) #20 | 1976-03 | Softcover |
| Title | Number | Date | Format | |
|---|---|---|---|---|
| "The Challenge from 5700 A.D.!" Vol. 1 (6) #20 | Vol. 1 (6) #20 | 1976-03 | Softcover |