When Johnny Maxwell and his friends find Mrs. Tachyon the bag-lady semi-conscious in an alley, they find that she holds the key to different times and eras - including the Blackbury Blitz in 1941. As time shifts beneath him, Johnny wonders just how much changing the past can really change the future.
- ISBN10 006137668X
- ISBN13 9780061376689
- Publish Date 3 April 2007 (first published 4 April 1996)
- Publish Status Unknown
- Out of Print 11 April 2013
- Publish Country US
- Publisher HarperCollins Publishers Inc
- Imprint HarperCollins
- Format eBook
- Pages 256
- Language English