The Shores of Horror
Web of Horror #1 came out in 1969, published by Cracked magazine's publisher, Bob Sproul. This issue used some (then) new artists, Berni Wrightson, Ralph Reese, Wayne Howard. It also used Don Norman, a name I believe is a pseudonym for Norman Nodel of Classics Illustrated fame, and the old Timely/Atlas/Marvel stalwart, Syd Shores. "Blood Thirst" would fit right into an Atlas horror comic, and showed that Shores lost nothing in the decade-and-a-half since the horror comics were erased by the Comics Code.
I especially like the dynamic panels of the crypt on page 3 and the vampire swooping in on page 4. Syd Shores learned his craft during the 1940s, batting out pages with Al Avison, carrying on Captain America from Simon and Kirby. His action figures jumped right off the page, as they do in this story.
Web of Horror lasted two more issues before expiring. Shores lasted four more years, dying in 1973. We fans lost both times.