Pellow & Krikdale are employed by the Government of National Unity, their role to ensure that any aliens, which donÕt exist but are known as externals if they do, donÕt threaten world peace, which they do. Maybe.
Externals, that is, not Pellow & Krikdale.
In the midst of world peace, the GNU receive a chalk message warning them of seven perils which the world must rise to in order to ensure the continued existence of the world.
It falls to Pellow & Krikdale to follow up seven clues, find seven threats and eradicate them before they eradicate us.
Death, threats, comic asides and cliffhangers abound over nine chapters as our heroes trundle around New Britain to keep our old new country safe or at least safer than it could be or is today, which is a long way from 2055.