- Q: When an act or agenda instructs the players to reveal or put a new location into play, who is considered to have revealed it or put it into play for the purposes of card effects such as Mouse Mask or Whitton Greene that trigger “after you put a location into play?” A: Because acts and agendas are advanced by the players, as a group, each investigator is considered to have put the location(s) into play. (Official FAQ v2.4, July 2025)
Mausmaske
Der demütige Beobachter
Vorteil
Gegenstand. Glücksbringer. Maske.
Cost: 1.
Nur 1 Maske pro Ermittler.
Anwendungen (2 Opfergaben). Fülle 1 dieser Opfergaben auf, nachdem du einen Ort enthüllt oder einen neuen Ort ins Spiel gebracht hast.
Gib 1 Opfergabe aus: Du bekommst für diese Probe +2 oder +2 . (Nur ein Mal pro Probe.)

FAQs
(from the official FAQ or responses to the official rules question form)Reviews
Q: Does the Mouse Mask recharge after Luke Robinson triggers the Gate Box which puts into play Dream-Gate: Wondrous Journey? How about when the signature weakness Detached from Reality puts the other Dream-Gate: Pointless Reality into play?
A: Yes to both; in both cases, Dream-Gate is “put into play,” replenishing an offering on Mouse Mask.
Note: Not sure how to add this to the FAQs section above, but this is the official answer I got from FFG.