Cat in Bolivia

Some time after the disappearance of Megan, she founds out some similarities with her portal piece and the megan's portal piece so she tries to put them together, by she does that the two pieces turns into one and something appears from the other side. She gets curious about it an decides to find Megan so she finds out that Megan is in Bolivia, after that she goes there. Cat keeps searching for Megan for two months, till she founds her and ask everything about the two portal pieces and Megan tells everything about the inverted world.