Unlock Mad Murdock! The Disgraced Mancer Lector will approach you with 3 wacky but useful inventions:

• The 'Eternal Battery' unique building: unlock two new upgrades for your settlement and watch it charge up in storms!
  
• The Arcing Tower of Doom: blast your enemies with lightning attacks that arc and split, attacking up to 8 targets!
  
• The Ancient Shocklance: Mad Lector has recreated this ancient weapon so you can launch lightning attacks from an upgraded turret on your surveyor.