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#287Book of Secrets"Tome of knowledge"Active item (6 rooms recharge time)
Activates one of the following map effects: Treasure Map, The Compass or Blue Map, for the duration of the current floor.

Highlights any tinted rocks and rocks with a crawl space in the room.

Cannot give effects that are already activated via any means.

If all of the effects are already active, it will provide X-Ray Vision for the current floor, opening all secret room entrances.

If used on a floor with Curse of the Lost active, it will immediately grant the X-Ray Vision effect.

This item contributes towards the Bookworm transformation. Collecting 3 items from this set will make Isaac fire an extra tear 25% of the time.
Unlock: Defeat Satan as Eden.

- Tags -- Synergies -- Links -

▾ITEMS ()▾

D infinityDogmaJar of WispsFlipEverything JarFiddle CubeDogboardGhastly Flame

▾TRINKETS ()▾

Extra VesselVessel RockDogrock RockSand CastleFractal Geode

▾PICKUPS ()▾

HeartHeart (half)Heart (soul)Heart (eternal)Heart (double)Black HeartGold HeartHeart (half soul)Scared HeartBlended HeartBone HeartRotten HeartPennyNickelDimeDouble PennyLucky PennySticky NickelGolden PennyKeyGolden KeyKey RingCharged KeyGolden BombGolden Troll BombGiga BombMega ChestMom's ChestMega BatteryGolden BatteryHalf Black HeartBlended Black HeartHalf Immoral HeartImmoral HeartBlended Immoral HeartMorbid HeartTwo-Thirds Morbid HeartThird Morbid HeartFull Eternal HeartDouble Full Eternal HeartCursed PennyGolden Cursed PennyHaunted PennyHoney PennyLego StudTokenCharged Spicy KeySuper Charged Spicy KeyFirework BatteryVirtuous BatteryBlood SackDire Chest

▾CONSUMABLES ()▾

HagalazJeraEhwazDagazAnsuzPerthroBerkanoAlgizGolden PillGolden Horse PillStorage BatteryCorroded Battery

▾MACHINES/BEGGARS ()▾

Slot MachineBlood Donation MachineFortune Telling MachineBeggarDevil BeggarShell GameKey MasterDonation MachineBomb BumShop Restock MachineGreed Donation MachineMom's Dressing TableBattery BumHell GameCrane GameConfessionalRotten BeggarMining MachineBismuth BeggarSourpussUnfinished GolemGeode GolemBabiMidarizerSweetpussBlacksmithZodiac BeggarRobot TellerEvil BeggarFake BeggarDealerCell GameHug BeggarCosplay BeggarPhone BoothGolden Slot MachineJukeboxVending MachinePoker TableGrid Restock MachineRevending MachineVanity StatwheelSewing Machine

▾CHARACTERS ()▾

MagdaleneSamsonAzazelLilithBethanyTainted MagdaleneTainted EveTainted LilithTainted Bethany

▾CURSES ()▾

▾OTHER ()▾

Pact of ChampionsPact of FragilityPact of FrostPact of GroundingPact of HemorrhagePact of Ice WraithPact of MasochismPact of MischiefPact of MitosisPact of ParanoiaPact of PerilPact of PunishmentPact of PurgatoryPact of RevivalPact of Scarcity