You have to locate the misplaced items and return them to their proper times and places.
Who Needs What:
See the related questions below.
you dont
@ the great wall...
inside a temple
The oracle is in the building on the hill on Time Tangled Island.
you find your self in the future(seconed time)
In "Time Tangled Island," you can find the gramophone in the 1920s area. It is located inside the house of the character named "The Inventor." You need to interact with the gramophone to play music and help solve the time-related puzzles on the island.
There are no horses, winged or otherwise, on Time Tangled Island.
The pumpkin head is in Time Tangled Island and you have to find it.
I don't think there is one.
on time tangled island [vikings]
The cave is located in 0831 AD.
In the Aztec period, you get them from the warrior.