Indiana Jones and the Great Circle is full of hidden quests and mysteries. One of the earliest you'll encounter is "The Bulls of Blood" in Rome, which hints at a secret passage within Castel Sant'Angelo. This guide will help you solve it.
Solving The Bulls of Blood Mystery
As you explore the Cappella within Castel Sant'Angelo, you'll find various notes and documents. Some of these trigger the mystery, marking the general area on your map. The key clues are the "Red Bulls Card" and "Russo's Note," which mention a passage near a fireplace and two bulls meeting.
Locate the room with two bull paintings flanking a seemingly blank wall. These paintings conceal the secret passage. To open the passage, rotate both bull paintings so that the brown pulls are at the top. The order in which you rotate them doesn't matter. Once both pulls are correctly positioned, the hidden door will open, revealing the secret and completing the "Bulls of Blood" mystery.
