Written in 1988, in the height of Reagan America and Thacher England, Chronosequence (The sequential set of changes in structure and composition of (plant) communities over time). Tells the story of events over 100 years that leads to a discovery that aliens might have visted earth long ago.
While the book has reference to Sherlock Holmes, it has more in common with Frankenstien. While the only monsters in the book are 100% human, the fear is in this book is about technology.
The question of technology being a savior or man or the downfall of man.