The fate of the world, decided by a twin's fight

[SPOILER ALERT-ISH]

In the book The Enchantress by Michael Scott, the two main characters Josh and Sophie are about to make a decision that could end the world. Josh and Sophie Newman discovered that they are the twins of an ancient legend, and they learn that they can do magic. Their auras are pure silver and gold and they are naturals at elemental magic, but that makes them valuable. Sophie and Josh have lots of fallouts, and learn that trust is difficult. They learn throughout the book that they can only trust each other, or the world could end.

In the end of the book before this one, Josh joins John Dee and Virginia Dare (the bad guys) because they led him to believe that they were good. Sophie is heartbroken and wishes that Josh could see straight. When they see each other next, Josh tries to show Sophie how the side she is on is bad. While Josh is being influenced, and trying to influence Sophie, they put their trust and lives in other people. This proves to be dangerous when Dee repeatedly tries to use Josh or Sophie's auras while killing them.

Later in the book Josh and Sophie are kidnapped by their "parents", and are taken back in time. Everyone there knows them, or has heard of them, and are very dangerous. They only know what Sophie can remember, but that still isn't enough. Powerful Elders (gods) surround them, and most of them want to kill them. Josh and Sophie start to realize that they can only rely on each other after they understand the danger everyone that they have trusted gets them into. Sophie says, "I wish someone were here who could advise us what to do," and Josh responds, "We don't need anyone. We've never needed anyone else. We are going to do whatever we think is right."

Josh and Sophie always love each other, and whenever they choose sides, they are thinking of their sibling. But they have to understand and completely trust the other for their world to be saved.