This section covers a short sub-event to unlock the secret of the Detention Room in Resident Evil 7. It is executable after defeating Marguerite Baker’s mutated form.
Requirement
Obtain the Lantern
Related article: Marguerite Baker Boss Guide
In order to gain access to the Detention Room sub-event, Ethan must have already beaten Marguerite’s mutated form during the Old House (Greenhouse) boss battle.
Old House 1F Attic
Head back to the Altar then proceed to the Attic. Use the Lantern to trigger the mechanism. This unlocks a new path for Ethan to explore.
A moderately sized old yellow ball blocks the entrance to the Detention Room. Its door is stained a grungy yellow.
Enter the door to find a small dull room, nothing much to see here except for an aged dollhouse. Approach it and press the action button to open it and find a small sheet of paper tucked in the first storey.
Examine the paper, rotate it to find a child’s drawing. It is a basically a blueprint of the room. Take note of the encircled portion.
Find the encircled portion, then crouch down to examine a portion of the wall that looks as if it was removed and simply replaced. Interact with it to reveal a secret passage.
At a glance it looks like a cult’s altar. However, there’s a dead figure seated on the chair. Approach her and Ethan will be able to obtain a D-series arm.
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