Grace’s heart races as she discovers her 78-year-old grandfather’s old school diary, filled with secrets and a mysterious address. With Grandpa Henry missing and no clues in sight, Grace clings to the hope the diary offers. Will she find her Grandpa before it’s too late?

Our family is pretty close. I live with Mom, Dad, and Grandpa.

At 15, I often feel like my heart is big enough to hold all the love in the world. One person who takes up a lot of that space is my Grandpa Henry. He’s 78 years old, quiet, and reserved, but I know he loves me deeply.

Sometimes, he has memory lapses, but that doesn’t bother me. I cherish every moment with him.

Later that evening, I walked into Grandpa Henry’s room with his favorite tea.

He looked at me, his eyes confused. “Who are you?” he asked, his voice trembling.

My heart sank. “It’s me, Grace. Your granddaughter.”

And then, one afternoon, the worst happened.

Grandpa disappeared.