Action Comics Annual #1 1987

Action Comics Annual #1 (1987) presents a thrilling team-up between Batman and Superman. Batman investigates mysterious vampire murders in Fayerville, South Carolina, eventually calling on Superman for assistance against the ancient vampire, Skeeter. This issue is notable as the first Action Comics Annual and a key post-Crisis story. It showcases Batman, unaware of Superman's secret identity, using a unique codeword to contact him, and establishes Superman's vulnerability to magical threats like vampires.