Are you, are you coming to the tree? Wear a necklace of rope, side by side with me. Strange things did happen here. No stranger would let it be if we met up At midnight in the hanging tree.

This quote is from the novel The Hunger Games and it is a call to meet someone at midnight in a tree that is known for being used for hanging. It implies that whatever is going to happen at this tree is strange and that only someone who is not a stranger (someone who knows about the place) would allow it. It also suggests that the person being spoken to should wear a rope as a necklace when they meet up at the tree. In simpler terms, the quote is asking someone to meet up in a place that is linked to something unusual, with the additional instruction to wear a rope as a necklace.