So I run my own Homebrew based on the 5E rules and I have the PHB, DMG, MM, Volo's Guide, and the Tome of Beasts. Yesterday I was at the comic book shop and found a 4th edition book "Open Grave Secrets to the Undead" and figured that while it is 4E it gives me some ideas of lore and I can always change the stats of the encounters and monsters to work in my campaign.
So, my question is, do you all have any suggestions on books, either 5E or older that I can use for lore, items, and ideas in my own campaign?
So, my question is, do you all have any suggestions on books, either 5E or older that I can use for lore, items, and ideas in my own campaign?