Across the Border by Arleta Richardson is book four in the Beyond the Orphan Train series and takes place in historical America. It's the early 1900's and Ethan Cooper and his younger siblings have been adopted into a family that lives on a farm in South Dakota. Life isn't easy fitting in with the family, and things are about to get more difficult when Mr. Rush announces that the family will be moving to Mexico! Ethan is scared. . . what dangers await them in politically turbulent Mexico, and what about his dreams of pursuing his education. He can't leave his siblings after he's promised that they will always stay together. Across the Border reminds readers that God is with them from the start and that He will never let them go. Recommended for ages 8 to 12 years.