Since I don't know what word is underlined, I will just list everything. 'Marty' is a noun, 'sensed' a verb, 'his' pronoun, 'baseball' noun, 'team' noun, 'was' verb, 'in' preposition, 'trouble' noun.
Answer:place/detailed position/location of where the treasure is
“It is only with the heart that one can see rightly. What is essential is invisible to the eye.” This is pretty much meaning that you need to think correctly to be able to understand most things.
Yes it should be capatalized because it is a proper noun