Ladders Skyward — Jason Sullivan

Ladders Skyward follows three friends on an inter-dimensional journey to save the Earth. What begins as a nature walk, ends up changing their lives forever. An alien, with a desperate plea, meets them among ancient petroglyphs. Before they can grasp what is happening, their individual lives start transforming in order to help them save the planet. Journey with them as they courageously move into an uncertain future, battling destroyer aliens and helping friendly ones. The key to their success is understanding their true inner natures, and that of the creators who left the planet many millennia ago.