Umineko no Naku Koro ni Episode 4 Shinsou Kaimei Dokuhon (うみねこのなく頃にEpisode 4真相解明読本 When the Seagulls Cry Episode 4 Truth Reader) is the fourth guidebook in the Shinsou Kaimei Dokuhon series and acts as a supplement to Alliance of the Golden Witch.
- Compiled fan theories
- The TIP A Certain Witch Hunter's Interview Tape
- An interview conducted after the release of Alliance.
A Certain Witch Hunter's Interview Tape