While navigating the Moonrise Towers, the story will direct you to Balthazar’s Room, especially if your aim is to find a Moonlantern. This article will guide you on how to solve Balthazar’s Protruding Book Puzzle in Moonrise Towers in the game Baldur’s Gate 3.
To begin solving the puzzle in the Balthazar room, look for the human corpse beside the bookcase. Take the heart from the body.
Now approach the bookshelf. If you pass the Perception check, four bookcases will light up. You only want to interact with the book extending from the upper right corner.
Then, to the right of the bookshelf, interact with the Ancient Altar and insert the heart in the altar. This will finish the puzzle.
A section of the bookshelf will shift, allowing you to enter the secret lab. Proceed to the hidden chamber and loot the treasure chest. You will find an Elixir of Necrotic Resistance as well as a Coldbrim Hat.