It reveals why Jekyll looked so sad and would not join the men.
Typically unnamed characters are representative of universal characters. They symbolize anyone who might find himself in such a difficult situation.
The prepositional phrase is "on a high shelf" since ON is a preposition.
Of what play, may i ask??
the answer is a
"Pa, when ah gets as big as you Ah'm goin' farther than them ships. Ah'm goin' to where the sky touches the ground."
