I have been looking at the metro map on the RAPT site and I'm confused. It appears that Line 13 to St. Lazaare and the Line 14 to Bercy is quickest route but that does not come up as a possibility. Could it be that Line 13 goes right through St. Lazaare but does not stop?? The site is telling me to take Line 4 to Pigalle, then Line 12 to St.Lazaare, then 14 to Bercy. That would involve 2 changes instead of one. Is there a better way? We will be leaving that evening on night train to Venice, so we will have 1 medium rolling bag each plus carry-on. Thanks for any suggestions. We do not want to take a taxi for that distance if we can help it.