The vampire novel Worth Their Weight in Blood uses evolutionary theory to create a world where vampires could have evolved.

Worth their Weight in Blood was featured in the BBC Wildlife Magazine.

“It’s difficult to come up with a new twist on the vampire tale, but Carole Jahme has done it. The writing is excellent. The premise is new. All in all, a great book and well worth reading, a really gripping tale.”

– The Horror Zine

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“It’s not easy, these days, to put a new spin on vampires, but Carole Jahme manages it. A truly fascinating read the best vampire book I’ve read in a long time. There’s lots of potential for a sequel.”

– British Fantasy Society