This is a booklet that was released alongside Banquet of the Golden Witch at Comiket 74 on August 16, 2008. It contains the short stories Bernkastel's Letter and Anti-Mystery vs. Anti-Fantasy and poems by Ronove and Frederica Bernkastel. A note inside the booklet says it is meant to be read after Banquet.
The short story Bernkastel's Letter and the two poems are inlcuded in Umineko no Naku Koro ni Tsubasa under the name Bernkastel's Letter.
These stories were republished in Umineko no Naku Koro ni: The First and the Last Gift under the title EP3 Novelty Shorts (EP3ノベルティ短編 EP3 Noberuti Tanpen).