可以的，官方有faq裁决
X Q: Can I use Knowledge is Power to translate the Forbidden Tome in my hand? A: The short answer to your question is “maybe.”
X If Forbidden Tome was in play, and you used Knowledge is Power, you would skip the “cost” of activating Forbidden Tome’s ability (spending an action + exhausting Tome + spending 1 secret) and continue with the rest of the ability: drawing 1, checking if you have 10+ cards in hand, and if there are no secrets on Tome. Only if those conditions are true could you “translate the Tome.”
X If Forbidden Tome was in your hand and you used Knowledge is Power, all of the above would stay about the same except that you would no longer have to worry about “secrets” on Tome. If you drew 1 and then had 10 cards still in hand, then you could “translate the Tome.”
X Follow-up Q: I thought that you would not be able to translate a Forbidden Tome that is in your hand because you would not be able to discard it due to abilities only interacting with cards in out of play areas if they explicitly say so. I.e. the card doesn’t explicitly say “discard from hand” and so it really means “discard from play” which you can’t do because it’s not in play. A: Forbidden Tome does not specify whether it must be discarded from hand or in play to resolve its effect, so you are free to discard it from either place while resolving Knowledge is Power.
X Q: Can I use Knowledge is Power to translate the Forbidden Tome in my hand? A: The short answer to your question is “maybe.”
X If Forbidden Tome was in play, and you used Knowledge is Power, you would skip the “cost” of activating Forbidden Tome’s ability (spending an action + exhausting Tome + spending 1 secret) and continue with the rest of the ability: drawing 1, checking if you have 10+ cards in hand, and if there are no secrets on Tome. Only if those conditions are true could you “translate the Tome.”
X If Forbidden Tome was in your hand and you used Knowledge is Power, all of the above would stay about the same except that you would no longer have to worry about “secrets” on Tome. If you drew 1 and then had 10 cards still in hand, then you could “translate the Tome.”
X Follow-up Q: I thought that you would not be able to translate a Forbidden Tome that is in your hand because you would not be able to discard it due to abilities only interacting with cards in out of play areas if they explicitly say so. I.e. the card doesn’t explicitly say “discard from hand” and so it really means “discard from play” which you can’t do because it’s not in play. A: Forbidden Tome does not specify whether it must be discarded from hand or in play to resolve its effect, so you are free to discard it from either place while resolving Knowledge is Power.
