Behind the sun

the long version

" ... Follows Sally Burns and a team of elite experts when they travel to a newly disocvered planet on the opposite side of the Sun, one almost identical to Earth in every way. What they find challenges their beliefs about Earth's history, and the nature of reality itself. Facing sabotage, brutality, and events and creatures of legendary scale, Sally and her team are unprepared for the revelations they discover. In the end, Sally and the others find a greater fate awaits them there, one more profound than Sally could ever have imagined"--Publisher description.