Trinity Continuum — Lauren M. Roy

ISRA assigns Jay and her team to Far Myumba for what should be an easy job aiding a remote research settlement with their irrigation systems. Shortly before their arrival on the distant moon, a mysterious artifact falls from the sky.The aliens who come to claim it give the townspeople of Upepo an ultimatum: clear out before the sun and the planet Mgitu rise, or there's going to be trouble.Cut off from the moon's other cities and interstellar aid, Jay and her team are the little town's first - and only - line of defense.A novella set in the Trinity Continuum: Aeon universe