Gravity. The Alex Cave series book 4.: The moon is being dragged from orbit.

Winner of the 2016 Best Indie Book Award in Science Fiction, an artificial gravity device could cause our extinction, and only geologist Alex Cave can save us from annihilation.

Alex receives an urgent message about an unusual geologic event in Iceland, and since he has dealt with strange phenomena in the past, he is put in charge of the investigation. He and his friend descend deep into the lava tube of an ancient volcano and discover a 180-million-year-old alien artifact of incredible power. Before he can take it to a safe location, it is stolen and activated and begins dragging satellites into the atmosphere and changing the orbit of the moon, but it won’t turn off. The extreme tidal affect starts ripping apart shorelines around the world, causing devastating destruction to life and property.

Alex begins a desperate race to find the artifact and shut it down while also dealing with the kidnapping of his family, and as if that wasn’t bad enough, a massive emerald asteroid with a core of solid gold is on a collision course with Earth and will impact in six-days, killing every living thing on the planet. Can Alex find a way to save humanity from extinction?

An award-winning ride from this bestselling author, with thrilling situations, exhilarating situations, and nail biting suspense.

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