The Lost Hero / The Son of Neptune / The Mark of Athena / The House of Hades / The Blood of Olympus
No romance or no physical intimacy at all.
Closed door. No anatomical or crude language.
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Blurb
Heroes of Olympus Complete Collection 5 Books Box Set Titles in the Set: The Lost Hero The Son of Neptune The Mark of Athena The House of Hades The Blood of Olympus
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The Sun and the Star
Same demigod world and found-family quests, but narrower in scope: a quieter Tartarus journey centered on a tender mm romance and grief.
A Civil Campaign
Another ensemble of loyal misfits juggling political chaos with comic timing, but adult, romance-driven, and built on drawing rooms rather than quests.
Dead of winter
Prophecy-bound teen and her allies fight monstrous powers as a team, though far darker, bloodier, and centered on a romantic triangle.
Shadow's Seduction
Keeps the outcast-warrior and chosen-family flavor in a mythic immortal court, but it's adult, explicit paranormal romance instead of clean YA adventure.
Home Sweet Home
Shares the found-family warmth and processing loss, though it trades monsters and prophecy for a small-town second-chance romance with heat.
The fallen kings
Shares the sprawling ensemble-as-family and wartime stakes, but trades Greek gods for grounded WWI historical drama with adult romance and grief.