The next day, Carter dropped by the house, and they took on a moderately steep mountain trail not far from where she usually practiced.

Emily was a little concerned about Carter going too fast for her, but he kept a steady pace, not trying to show off or get too far ahead. This was her first ride since getting her license, and as usual it took her mind off other, less pleasant matters.

They stopped in front of a picnic bench to have some water and take in the ...