Underground Library

Underground Library is a pre hardmode mini biome that appears in the cavern layer. The library is rectangular and is made out of stone bricks and book walls. On the floor of the structure is piles of books that can be broken to retrieve books and sometimes spell tomes.

Loot

 * Books
 * Water Bolt 2% chance from book piles
 * Book of Skulls 2% chance from book piles
 * Demon Scythe 2% chance from book piles
 * Crystal Storm 2% chance from book piles (hardmode only)
 * Cursed Flames 2% chance from book piles (hardmode only)
 * Golden Shower 2% chance from book piles (hardmode only)
 * Razorblade Typhoon .1% chance from book piles (hardmode only)
 * Lunar Flare .01% chance (hardmode only)

Enemies

 * Book Worm
 * Knowledge Spirit
 * Underground Owls
 * Skeleton Scientist