What is the modifier in the following sentences?

Is the child talking about unicorns?
Yes, they soared above the clouds.
Did they jump across Death Valley?
Yes, after they crossed the Rainbow Bridge.
Did they go against the monsters?
Yes, afterwards they went along Glitter Road.
Were they soon among the bright stars?
Yes, they looked around the shimmering sky.
I am going to join the conversation as a fellow unicorn lover.