- The songs on this ep were re-released after the band changed their name to Savatage: the a-side, "City Beneath the Surface", and the second song of the b-side, "The Whip", went on to the 1985 The Dungeons are Calling ep, while the b-side opener, "Sirens", became the title track on the 1983 debut Savatage lp, Sirens.
- Limited edition of 1000 copies, with the first 25 copies pressed on yellow vinyl and 975 copies pressed on black vinyl. An small, unknown quantity of yellow/black swirl vinyl also exists.
- Approximately five test pressings were manufactured with hand-written center labels.
- Promo copies were white label and sent out without promo sleeves.
- This picture sleeve of the first pressing were rounded.
- Recorded at Morrisound Recording, Tampa, FL.
Matrix / Runout: PAR-1002-A
Matrix / Runout: PAR-1002-B