The Swamps of Dorscha - The Forgotten Portal, #2

Allie McGee and her little brother return through the portal in the woods behind their house to find their beloved wood of Halainn in trouble. There they meet the mysterious prophet who opened the passage between their worlds. He says he must take them on a journey to the treacherous swamps of Dorscha in order to fulfill a prophecy. He warns them that going into the swamps will mean danger to their very souls.
Only one thing convinces Allie they should go. King Olshek is there, and he has in his possession someone she and her brother hold dear. Will Allie make the sacrifice that is asked of her in order to overthrow the wicked king and put the rightful rulers back on the throne? Or will the cost be too great?