What's the Name of That Book??? discussion

I can't remember anything else about this book other than it had to do with immortality and I think there was a frog somewhere in it. I read it in elementary school many years ago. I think there was an immortal boy who might have come from a family of immortal people. Him/maybe his family took a potion or something to become so. He meets a girl and she wants to take the potion too. I feel like I remember them sitting under a tree and talking about it. Can't remember where a frog/toad came in but I feel like it was in the book somehow. I'm pretty sure the story was about the girl rather than the boy, but not sure.

Tuck Everlasting!

Definitely Tuck Everlasting by Natalie Babbitt.

(They made me read it in 6th grade English and I'm still resentful. YMMV.)

that was it! thanks!