What is the summary of Chapter 4 in Tuck Everlasting?

• Winnie is catching fireflies when a stranger appears at her gate.

• The stranger asks if the Fosters have lived in their house for a long time and if she knows all about her neighbors.

• Winnie's grandmother comes outside when she realizes there's a stranger at the gate.

• They hear the music from Mae's music box and Winnie's grandmother thinks it's elf music.

• Winnie and her grandmother go inside and the stranger remains still for a long time before leaving.