The Engines of God was my introduction to Jack McDevitt and I could hardly put it down. I really got caught up in both the stunning scenery and the action sequences. Its almost like a cross between Star Trek and Game of Thrones; they explore fascinating new worlds, go where no human has gone before, and in true GoT fashion not all characters make it out alive. We call them the Monument Makers. Throughout the galaxy they build amazing structures, the purpose of which we can only speculate. Priscilla Hutchison is a pilot for the Academy and her current assignment is with a group of xenoarcheologists. They've made an amazing discovery about the monument makers and following a single clue, she pilots a ship in search of the Monument Makers. To say more about the plot might ruin it.
The Engines of God - Boldly Dying Where No Human Has Died Before