Deadly Dream. Logan Ryvenbark's Saga, #2

A warlike race is busy launching invasions and taking over planets, so when Major Logan Ryvenbark gets a call from interplanetary CEO Belen Morganthal, he assumes that he and his mercenaries are going to be needed for the unfolding war. However, he soon learns that that is not what Morganthal needs him for at all. Instead, Morganthal informs Ryvenbark that three planets in the Terlor system, including the home planet of the Oreganians, have been destroyed - and five billion lives have been lost.
Major Ryvenbark and his team discover a strange sphere, five hundred miles in diameter, drifting through the Terlor system, and Major Ryvenbark has a strong hunch that this mysterious sphere has more than just a little to do with the destruction of the three planets. What he isn't sure of is whether he and his men will be able to get inside this thing - and, of course, what they will find if they do get inside it - in order to prevent the destruction of even more planets...
but he knows that he has to risk everything to try. In Deadly Dream, you'll be taken on a journey that goes beyond the laws of time and space and bends the very fabric of reality. On this roller-coaster Sci-Fi ride through the wildest conjuring a talented Sci-Fi writer can come up with, you won't be able to put the book down from the moment you start reading until you reach the final page.