Who lights the holiday candles at Grandpa Will's in The Devils Arithmetic?

In "The Devil's Arithmetic," the holiday candles at Grandpa Will's are lit by Hannah Stern, the main character, who is also known as Chaya. As part of the Passover Seder tradition, she participates in the lighting of the candles, which symbolizes the start of the celebration and honors her family's Jewish heritage. This moment is significant in connecting her to her family's past and the importance of remembering their history.