Tracklisting
1. Prowler (03:55)
2. Remember Tomorrow (05:27)
3. Running Free (03:16)
4. Phantom of the Opera (07:20)
5. Transylvania (04:05)
6. Strange World (05:45)
7. Charlotte the Harlot (04:12)
8. Iron Maiden (03:35)
9. Sanctuary * (03:16)
= 00:40:51

* = bonus on various versions (Harris/Murray/Di'Anno).

Produced by Will Malone December 1979.
Recorded at Kingsway Studios, London, England.
Engineered by Martin Levan.
Mixed at Morgan Studios, London, England.

All titles composed by Steve Harris except 2 & 3 by Steve Harris & Paul Di'Anno & track 7 by Dave Murray.

Front cover illustration by Derek Riggs.

Line-up (left to right):
Dave Murray - guitar
Clive Burr - drums
Paul Di'Anno - lead vocals
Dennis Stratton - guitar, vocals
Steve Harris - bass, vocals