Okay, Mum says she'd much rather we both took the train the whole way there (you met me when I got into Philly and then just went on to NY with me), and she'll also pay the extra it'll cost you to go by train instead of bus (this because she's willing to pay extra to avoid her daughter being EATEN BY A SCARY BUS MONSTER OF DOOM AND BIG DROOLING TEETH ^_^), and also then we wouldn't have to worry about time constraints as much.

...I don't suppose you'd have the Harrisburg to Philly to NYC train schedule on hand? O:D