Then Loki, the spirit of evil, will break loose from the fetters with which the gods have bound him. The frost giants join him.
They will try to make a secret attack on the gods. But Heimdall, the sentry of heaven, will be on guard at the end of the rainbow-
bridge. He needs no more sleep than a bird and can see for a hundred miles either by day or night. (He will sound the horn
whose blast can be heard through heaven and earth and the under-world. Loki and his army will be seen by him. His loud alarm
will sound and bring the gods together. They will rush to meet the giants. Woden will wield his spear-Tiew his glittering sword
- Thor his terrible hammer. These will all be in vain. The gods must die. But so must the giants and Loki.
Which detail about the Norse god Loki could be deleted without loss of essential information about him?

Loki and his army will be seen by him

Explanation:

Due to the sentences stating that the gods are wielding weapons and Heimdall's vision, it is obvious Loki was already spotted so it can be removed.

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.  

the main character of "the secret life of walter mitty" retreats into a false pretense as a means escape from his mundane reality -- this is a flagrant issue seen in societies abroad, typically found in young adults and it is robbing our youths of their childhood.

explanation:

a thesis -- a well developed, formal thesis is required to be one sentence long. there are many themes in "the secret life of walter mitty" and i had resolved to give you one of the simpler ones while still honing it with class.