679: Tell Me About Tomorrow

Explanation
The original comic comes from a story arc where Charlie Brown begins feeling ill during a baseball game, and checks himself into a hospital. It's notable that as the arc progresses, Lucy is genuinely worried about Charlie Brown and wants him to get better. (Thankfully, after a few weeks, he does.)

In the original strip, Lucy darkly answers, "I'm glad it wasn't me!" Here, she and Linus smile quietly -- possibly hoping for said "friend"'s eventual recovery. The strip's name is derived from an album by jxdn and its title track: the song is about reassuring someone who's comatose that they shouldn't give up because there'll always be a tomorrow. With all this taken in, it changes Lucy's self-centered and pessimistic outlook to one of hope.

The author writes
Original Peanuts strip: 1979-07-16.

Transcript
{Linus and Lucy are sitting at a brick wall} Linus: Did you hear that Charlie Brown is in the hospital? Lucy: He is? Linus: What's the first thing you think when you hear that a friend has gone to the hospital? {they smile}