Horrortale is an AU that takes place many years after a neutral run caused by Frisk. The monsters of the Underground have gone crazy and savage due to wide-spread starvation, the consumption of human meat, and the new laws established by the new queen, Undyne.
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Ben 10 x Horrortale (Alien Hero in the underground)
FanficWhat if?: Ben Tennyson fell to the underground where monsters had been banished and betrayed by the human named frisk after doing a natural run.