Ten years following the events of Forever in Blue, Tibby has moved to Australia with Brian and has almost no contact with Lena, Bridget, and Carmen.

When she invited the girls to Greece, she intended to share her diagnosis and give them post-dated letters to help them move on, encouraging them to follow their hearts because life is too short to waste.

Tibby's letters to her friends invite them to an address in rural Pennsylvania the following spring, which is revealed to be a farm that she had bought for her family and loved ones.

Lena is now an art teacher at the Rhode Island School of Design, casually dating a sandwich maker named Drew, and still obsessing over Kostos, who is now a successful businessman in London.

Carmen is now a semi-successful, work-obsessed actress in New York and is engaged to Jones, an occasionally pretentious television executive whom her friends dislike.