"Crossing Over" is the seamless sequel to "Evergreen Crossing", the second in a series of Derek Stoddard novels. It is the year 2035 and the newly reunited Stoddard family, along with Jonathan Pierce, has been assigned a task by the Office of Strategic Operations (OSA). If carried out successfully it will dramatically alter the future of a different timeline. But before Derek will agree to go on this assigned mission he insists his daughter Katy divulge top secret information, something the OSA has cautioned her against. Based on the cryptic information Derek gleaned from the planned operation he felt he and his son Will would be in grave danger. He insists on the assistance of an old Marine buddy with whom he served in the Syrian Desert in the early 1990's. Finding this man in itself would be a challenge, not to mention the shock the former Marine would receive when he saw Derek. In the forty some years since they last saw each other Derek had only aged twelve years. But there are other instructions they will receive from the OSA when they arrive in 1915 London; instructions which will leave them astonished! "Crossing Over" is an exciting sci-fi, fantasy, adventure novel which has many unexpected twists and turns along the way. There are new characters introduced as well as sometimes tragic encounters with those more familiar. The consequences of time travel, planned and unplanned, good and bad, are explored as our group of somewhat unwilling participants journey to their assigned timeline. They also manage to, without authorization from the OSA, venture back to the timeline which started it all. Moral issues are explored and tough decisions are made by all the characters as they journey through three different centuries. One thing is certain; you won't expect the ending to this wild ride!