Q: While playing a “Return to” scenario, what do I do if a campaign guide instruction or card ability refers to a card from an encounter set that has been replaced with a new encounter set? A: If it is a setup instruction or an instruction to search for that card and put it into play, the investigators should find the matching card from the new encounter set that replaced it and follow the instructions using that card, instead. (If it is unclear which is the matching card, use the encounter numbers to help guide you. For example, Wizard of the Order is card 4/6 of the Dark Cult set; if that set was replaced, the matching card would be card 4/6 of the new set.) If it is a gameplay effect other than the above, ignore it. - FAQ, v.2.0, August 2022

Q: In Return to Depths of Yoth, when the act advances it's possible for the exploration deck to include encounter cards shuffled in by Best-Laid Plans, in addition to locations and/or Perils of Yoth. Should those cards just be discarded? Or is the intention that they get removed from the game? A: Yes—when you make a new exploration deck in Act 1b, you should discard any extra encounter cards that were in the exploration deck, placing them in the encounter deck discard pile. (October 2023)