On their website, Tyndale has a
free pdf of
The Imagination Station: Voyage with the Vikings, Book 1. It is 114 pages long.
The book is written by Marianne Hering and Paul McCusker, and illustrated by David Hohn. Speaking of illustrations, the ones in this pdf apparently are all black-and-white, although I have a feeling that they were originally in color.
Here is the direct link:
http://www.tyndale.com/blog/wp-conte...ithVikings.pdf.