Phandalin

There are several pieces of secret information that the players should not know in the beginning of the campaign:

1. The Black Spider: The main villain of the campaign is a mysterious figure known only as the Black Spider. The players should not know the identity of the Black Spider or their ultimate goal until later in the campaign.

2. Wave Echo Cave: The location of the legendary mine known as Wave Echo Cave is a closely guarded secret. The players may hear rumors about the mine, but they should not know its exact location until they have gathered more information.

3. Gundren Rockseeker: The dwarf who hired the players to escort his supplies to Phandalin has gone missing. The players should not know the full extent of Gundren's involvement in the campaign's plot until later in the campaign.

4. The Redbrands: The players will encounter a group of thugs known as the Redbrands in Phandalin. These Redbrands are actually working for the Black Spider, but the players should not know this right away.

5. The Forge of Spells: The Forge of Spells is a magical forge located in Wave Echo Cave that is capable of creating powerful magic items. The players should not know about the Forge of Spells until they have discovered the location of Wave Echo Cave.