Three speculative fiction stories of contact. Trappers features Caleb Pasco, who after 30 years in the mountains is heading back to civilization - until he meets something never before seen on Earth - and it wants him. Diplomatic Exchange features three professionals witnessing a first ever peek back into the 18th century. They had no idea they would actually make contact with it physically. Tabu is set on the raft city of Concordia where the decedents of a wreck space ship greet each other with "Until the Return of the Ship." When a rescue starship does arrive they discover they might lose more than they gain.