The Locked Tomb series by Tamsyn Muir for a mix of both

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Annihilation!

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The ender game series along with ender shadow series are phenomenal

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Also the gaunt ghost series is really good its a warhammer 40k series but u dont need to know much lore to enjoy it its like band of brothers in space

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Sci fi: Hyperion cantos Horror: The road Mix: All tomorrows

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jurassic park is a mix of both!

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