My son and I will be taking the Ghosts and Graveyards tour on Friday night at 9 PM. Staying at the Royal Sonesta, I am estimating being back to the Lechmere T stop around 11 PM. Is it going to be safe walking at that time of night? If not, could you suggest an alternate stop or mode of transportation? We will have LinkPasses, so I was trying to take advantage of them. Thank you!