The Miracle — Emma Bradley

When magic and mystery become a part of adult memory, and children only know the hushed whispers in dark corners, people expect trouble at every turn. Gin had hoped to leave the Otherworld realm behind. But now she has returned with a plan, to rescue her friends and show them a way home. Without knowing whether Niall has followed her, or if a route back to Lidoffad now exists, she has to strike out alone. Her only hope is to find her friends and another way home, before the old enemies of the past find her.