[I] Frozen Tome is not obtainable in Story mode

[AwesomeJRFD]

Frozen Tome, the weapon that shoots 5 ice projectiles, is not obtainable in the story mode of Null Space RC2. In RC1, it was available in a chest under the tower in the first room of the hardmode of Thirteenth Dimension: Curiosity (now replaced with a Lightning Rod), and a rare drop from Ice Mages.