Kenneth Bulmer 
Land Beyond the Map 
Keys to the Dimensions Book 1

Expressway to an Uncharted Sphere"Theyre about!" the woman whispered, and Crane abruptly saw a strange light shining through the heavy black curtains that shrouded the house. He crossed to the window and before anyone could stop him he drew the curtain back.At first he did not understand what he saw: a round gleaming, colour-running orb stared unwinkingly back into his face. It was an eye. An immense sad eye staring at him through the chink of the curtains, an eye surrounded by a living whorl of flame that he had last seen engulfing poor Barney in the parking lot.At least three others had disappeared into the strange world from which those aliens had come, and a girl had been driven insane by them. And before Crane’s quest to unravel the secret of the Map Country was complete, the fate of two worlds would hang in the balance.