Archer is:
The ill-fated explorer of the interior recesses of the embattled brain-box and beyond

Trevva is:
The Mystical Enchanter

Together they done wrote:
Archer and Trevvas Book of Ideas

A book of Hope and of terrible calamities Written for the people And themselves And for all of the everythings Yors sincerely Archer and Trevva Lovingly dedicated to Trevvas Dear Mum