Forbidden Tome
Secrets Revealed


Item. Relic. Tome.

Cost: 1. XP: 3.
Test Icons:


Exhaust Forbidden Tome: You may move to a connecting location. Discover 1 clue at your location. Reduce this ability's cost by 1 action for every 4 cards in your hand (to a minimum of ).

Chris Miscik
Harvey Walters #30.
Forbidden Tome
FAQs (taken from the official FAQ or FFG's responses to the official rules question form)
  • NB: ArkhamDB now incorporates errata from the Arkham Horror FAQ in its card text, so the ArkhamDB text and the card image above differ, as the ArkhamDB text has been edited to contain this erratum (updated August 2022): Erratum: The purchase restriction on this card should be replaced with the keyword: "Researched." - FAQ, v.2.0, August 2022
Last updated

I admit, this card makes me want to design a Big Hand Ursula deck. With a couple of Pathfinders, plus this, she can get all the clues, everywhere, as long as she can get 12 cards in hand, which might be a bit if an ask, but she might be up to it. Harvey or Mandy with multiple Pathfinders is a better bet, although a tad less flavorful.

Atach it to Abigail Foreman for even more shenanigans! — Death by Chocolate · 1326
Even more efficient if you're triggering it with Knowledge is Power — Zinjanthropus · 222
Played once when I "blind translated" the book (I included the level 0 card without checking if the upgrade were interesting) and with less than 12 cards in hand I had never the tempo. — AlexP · 243

If you don't built a deck around this card, it's rather useless cause it takes too many actions. You should move and investigate normally and probably gain more clues, even if you 1-2x.

However if you built a deck around it, it gets really crazy! If you have 12+ cards in hand, 2 of these in play and one tome on Abigail Foreman you spend 2 actions to move 3 times and gather 3 testless clues (6 actions worth). It get's even better if you add Knowledge is Power and Farsight with events that discover clues or investigate (Extensive Research, Burning the Midnight Oil). With so much auto cluing, you may not need regular investigate actions anymore, so you don't need boosts anymore.

While all of that sounds amazing, it needs a bit of setup. You need to increase handsize limit and get to 12+ cards in hand.

Django · 4741