About Arkham Horror: The Card Game – The Dunwich Legacy: Investigator Expansion, from BoardGameGeek:
A repackaging of the Dunwich Legacy cycle. All of the player cards for the cycle can be found in the Dunwich Legacy Investigator Expansion while all the encounter cards and campaign cards can be found in the Dunwich Legacy Campaign Expansion.
-user summary
A monstrous presence once terrorized the secluded village of Dunwich. The season of horror ended only after three professors from Miskatonic University-Dr. Henry Armitage, Dr. Francis Morgan, and Professor Warren Price-ventured to Dunwich, armed with secret knowledge that enabled them to defeat the creature. Now, several months later, Dr. Armitage's colleagues have gone missing, and he fears the worst…
Return to the very first cycle of content for Arkham Horror LCG with The Dunwich Legacy Investigator Expansion. Similar to the previously-announced Edge of the Earth expansions, all player cards for this cycle can be found within the Investigator Expansion.
Note: Any longtime fans of Arkham Horror: The Card Game who already own everything from the original The Dunwich Legacy cycle will not find any new cards or content within this expansion.
-description from the publisher
