Grognak the Barbarian and the Ruby Ruins
Defeat Grelok in this turn-based RPG.
The last holotape is waiting for you in Goodneighbor.
You'll only be able to access the area the holotape is in during the main quest.
Make your way to the Memory Den with Nick Valentine in tow.
You'll be sent to the basement, which is now accessible for the quest.
There's a desk alongside the left wall.
You'll find the magazine and accompanying holotape on here.