A pair of thousand-year-old skeletons are found.

Then, the fragments of an eighth century grave-marker, and an old book entitled ‘Raven-Fish!’

An archaeologist is presented with pieces of an ancient puzzle, and as he places them, with the uncanny help of his strange assistant, he gains evidence to support a much maligned theory that Dark Ages were dark by design.

As he chases down the truth in the present day, so Elmo and Finn (the characters from ‘Raven-Fish!’) try to avoid capture, torture and assassination. The net tightens on the truth and on Elmo, and both stories converge towards a common, shocking conclusion.