Montana Jack and the Vampires of Mars, a 2003 self-published novel by Bill Wyza

Here’s an interesting novel I found over at Lulu.com, the self-publishing website: Montana Jack and the Vampires of Mars (2003), written by a guy named Bill Wyza. Here’s the description of the novel:

Montana Jack is a Mercenary, a Bounty Hunter ... a Hero. The outpost on Mars has not been heard from in weeks ... the last known transmission spoke of something evil ... something utterly unspeakable loose within the underground facility. Only one man is qualified to investigate. Come aboard and experience the first adventure of the most dangerous hero on Earth.

I couldn't find any biographical information about Bill Wyza or reviews of Montana Jack and the Vampires of Mars, but the novel is listed on Amazon UK.