The exercise asks for the following to be translated from English to Latin:
"My son Sextus is carrying his booty to the Roman camp."
My try was:
"Sextus filius meus ad castram Romanam praedam suam portat."
The answer key says:
"Filius meus Sextus praedam suam in castra Romana portat."
What's the difference between in/ad here? I thought "ad" would give the sense of going toward, while "in" would be more along the lines of going through the door, or already being inside.