Land of Nod, The Artifact (Land of Nod Trilogy)

Jeff Browning has been haunted by terrifying dreams since the mysterious disappearance of his father (a renowned physicist). But when he finds a portal in his father’s office, he must overcome his fears in an attempt to find him. The portal takes him to another dimension – one populated by fantastic and dangerous creatures and also an advanced society of humans. As Jeff looks for clues regarding what may have happened to his father, he is accused by some of being a spy while thought by others to be a prophesized figure . . . who may be the key to victory in a developing war.