Astaroth

is the seventh boss of It Lurks Below. He is found in a dungeon at the bottom of the Garnet Layer in the Badlands after the player receives the quest "Kill Astaroth".

Strategy
Hardmode is active if hearts are left up. Four hearts can be found in the Mini Boss Dungeons:
 * Two of them get rid of two of his attacks (one each).
 * The third halves his health.
 * The fourth halves his damage.

Note: Bosses are the same level as the monsters found outside of their room.

Rewards

 * Gamma rune will drop if the boss kill grants experience.
 * A chance to drop some high quality items, including unique items.