Sojourner: Life will never be the same. Nor will death.

More about the book

When an alien race decides to go looking for life on other planets, they soon end up butting heads with a brilliant programmer on Earth. Mazie G is an IT security researcher at Atlas, the search giant. One day she stumbles across evidence that First Contact with an alien life form has already happened, without anyone even noticing. Her discovery sets in motion events that will threaten the future of humanity and forever change what we think being alive means.