Forum:Book of Eclipse Question

Lets take a simple example.

My opponent has a Marshmallon in face up defense position, a Dark Magician in face up attack position and a face down defense position Exiled Force. Then I activate Book of Eclipse flipping both of the face up monsters into face down defense position. At the end phase of this turn, when the monsters are both flipped, are they all flipped into attack, all flipped into defense or are they all flipped into the positions they were in when the Book of Eclipse is activated.

Thanks very much. Adam Gough