A strange and terrible living jelly-like substance-the product of nuclear weapons testing-emerged from the depths of the sea near Canada in 1965. Known by the human world as 'The Sludge,' this unique monster posed a threat to anything that stood in its way. Anything it covered became possessed of a frightening, malignant power aimed against Mankind! Celebrating sixty years since the character first appeared in the pages of Lion, this collection includes all of the Sludge's appearances from the 60s and 70s, including his crossover into the pages of the Robot Archie strip.
