Daniel hesitated for a little while, then answered. “Perhaps… it will affect your mood. Take a look!” He finally gave it to her.

Sarah took it quickly and swept her hand over the envelope as if that would reveal the secret. It was a plain envelope, with only a few blank lines for writing an address and zip code, but nothing was written on it. She opened it and touched something hard.

She frowned. “Photos?”

Daniel just nodded. It was a pile of photos, at least a hundred. Looking down, Sarah paused for a while and then went on.

Daniel was observing her every move and expression. In the beginning,...