Jack Porter is the author of several novels, including Wraith King, the Rogan's Monsters series, and the Rise of an Incubus Overlord series.
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A cave-diving expedition gone wrong. Oh so wrong. But there just might be a few perks . . . When a hidden portal opens into a prehistoric world, it's up to me, Professor Jake Montblanc, to save my all-girl college class from extinction. With danger lu... SEE MORE