Book about a grandfather and granddaughter traveling to see an Eclipse in Australia before he dies. Cover: blue. Spoiler ahead.

[Claudia]

The book is about a granddaughter traveling with her grandfather to see an eclipse in Australia before he dies. In the end, the grandfather falls ill shortly before seeing the eclipse but makes his granddaughter see him for him. I remember that its cover was blue.

[Rainbowheart]

When did you read it?

Is this book for kids, teens, or adults?

[Indah]

Is it when tomorrow comes by Peter O’Connor? I tried to remember what it is last night and find this question when I googled the plot.