Woodwillow: The Crosswinds of Further - Book 1, #1

A cursed book, a seven-sided stone that opens it and a world where every fear, every myth and legend, and every mystery comes to life leading you through a labyrinth of the unknown. And the only way to get back to your own world is to get through each portal; and each portal is more treacherous than the last.   Michael Quinn, an intuitive thirteen year old is given a stone that once belonged to his world-traveling, legend-chasing, archeologist grandfather who found it on one of his trips through the Australian Bush.
Now, as Michael starts seeing things pop up in his small rainy Vermont town, things he's only read about in mythology books, he begins to wonder if maybe the stone has more magic than his Grandma Butter let on, especially after his sister Tess falls through a river portal. With a little help from his best friends Sam (a chatty, superstitious, do-gooder) and Fiona ( an eccentric, know-it-all who believes frogs are her spirit animal), Michael sets out to break a centuries old curse, bring peace to a world his grand father created before The Others destroy it, and return the book and the stone to its rightful owner.