(please point out any mistakes you see in a review.)
What They Realized
When they woke in the morning, the two friends knew something was wrong.
It just took them a long time to figure out what.
They searched the entire archipelago, looking for trouble.
They found none.
The two relaxed, waiting for the last of the trio to show up.
When he never did, the two realized what was wrong: Riku was gone.
They asked everyone they could find; no one had seen him since the day before. Not even his mother.
When their friend was officially gone, the two teens worried about him, and started making plans.
But then they stopped.