Would it have possible to have made the reversal at Pencader Junction station, as we now head northwards to Aberystwyth from there?
It was a mental toss-up for me: "did Pencader Junction station actually exist; or is it a figment of a certain atlas-compiler's imagination?" I made the wrong decision.
Is the situation now, that the last station posted, is Pencader Junction -- by yourself -- so I can proceed with the next station northward?