These authors' works have the appeal factors suspenseful, action-packed, and fast-paced, and they have the subjects "alliances" and "kidnapping."

These authors' works have the subjects "child adventurers," "siblings," and "princesses."

These authors' works have the appeal factors suspenseful and plot-driven, and they have the genre "adventure stories"; and the subjects "life on other planets," "contests," and "siblings."...

These authors' works have the appeal factors suspenseful and world-building, and they have the subjects "contests" and "competition."

These authors' works have the appeal factors world-building, and they have the subjects "orphans," "child adventurers," and "princesses."

These authors' works have the appeal factors world-building, and they have the subjects "resistance to government," "imaginary wars and battles," and "insurgency."

These authors' works have the genres "action and adventure comics" and "science fiction comics"; and the subjects "orphans" and "princesses."

These authors' works have the appeal factors suspenseful and plot-driven, and they have the subjects "child adventurers," "siblings," and "adventure."

These authors' works have the appeal factors plot-driven, and they have the genre "spy fiction"; and the subjects "contests," "missing persons," and "competition."

These authors' works have the appeal factors world-building, and they have the genre "space opera"; and the subjects "child adventurers," "life on other planets," and "siblings."

These authors' works have the genre "mysteries"; and the subjects "clues," "codes (communication)," and "siblings."

These authors' works have the genre "science fiction comics"; and the subjects "orphans," "princesses," and "runaway children."