HBO's Lanterns has a premise designed to pull two large audiences through the same door. Hal Jordan and John Stewart are intergalactic law officers, but the case drawing them together is a murder in the American heartland. The scale is cosmic; the dramatic grammar is terrestrial crime fiction. Instead of beginning with armies crossing the stars, the series begins with two investigators asking what happened, who benefits and how far the evidence can be trusted.

That combination has a long but surprisingly underused history in science fiction. A detective story assumes that the world can be reconstructed from traces. Science fiction is free to alter bodies, memory, time, law, geography and even the definition of a person. Put the genres together and the investigator must first determine which rules make a crime possible before identifying who broke them. A corpse aboard a mindship may have been copied. A murder victim may return in a new body. An entire orbital democracy may be manipulated without a single conventional ballot being stolen.

This ranking favors novels in which investigation is the central method rather than a decorative subplot. The closest matches combine institutional law enforcement with a large speculative system and a conspiracy that reaches beyond the first body. Others trade the Green Lantern Corps for private detectives, citizen investigators or sentient ships. Every selection, however, understands the pleasure at the heart of Lanterns: the universe can be unimaginably large, and a good case can still narrow it to motive, opportunity and one detail that refuses to fit.

Selection note. This list prioritizes investigators whose jurisdiction has become speculative. The highest-ranked books ask police or agents to preserve law across orbital habitats, alien legal systems or compromised colonies. Lower entries retain the mystery structure but replace official cosmic cops with private eyes and unwilling amateurs.