Sixteen-year-old twins Harry and Barry stumble across a gateway to another universe, where a distortion in time and space causes a dramatic change in their competitive relationship.
- ISBN10 0553256270
- ISBN13 9780553256277
- Publish Date 1 April 1986
- Publish Status Out of Stock
- Out of Print 4 December 2011
- Publish Country US
- Imprint Bantam Doubleday Dell Publishing Group
- Format Paperback
- Language English