Spider Man Vol1#14

 Sub-City Part 2 of 2.

The wondrous wall-crawler -- dressed in his old black costume -- descends into the caverns below Manhattan to find the missing homeless people. And after sifting through a group of hostile underground dwellers, the amazing one meets their leader: Morbius!

What a surprise! Why is the Living Vampire...living underground? Gruesomely, it's because Morbius has found a new way to acquire victims for his feedings.

Oh boy, Spider-Man cannot let this continue. And that means war with the Living Vampire