Tired of being a twin, Mark tries to spend more time away from his twin brother and meets a scientist who challenges some of Mark's long-held Christian beliefs about heaven, God, prayer, and death.
- ISBN10 0380733226
- ISBN13 9780380733224
- Publish Date 5 February 2002 (first published 29 September 1999)
- Publish Status Out of Stock
- Publish Country US
- Imprint Harper Teen
- Format Paperback (US Trade)
- Pages 221
- Language English