The Hidden Experiment
Miss Peregrine's Home of Peculiar ChildrenMiss Peregrine recounts how an attempt to master aging transformed renegade peculiars into the Hollowgast and later the Wights.
increasing
Bearing strength in each event
decreasing
A Forbidden Ambition

A Forbidden Ambition
The promise of immortality
A renegade faction believes time loops can be manipulated to reverse aging and grant freedom from death. Miss Peregrine’s brothers join the effort despite warnings from the Ymbryne Council.
Knowledge without restraint
The experiment’s ambition treats mortality as a technical problem to defeat. Its pursuit of power endangers the entire peculiar community.
The Siberian Explosion

The Siberian Explosion
Catastrophe in the tundra
The faction conducts its experiment in an abandoned loop on the Siberian tundra. A tremendous explosion follows, and the participants are presumed dead.
Transformation instead of mastery
The survivors emerge as creatures in agony, not as gods. Their failure creates a lasting threat from an attempt to escape natural limits.
From Hollow to Wight

From Hollow to Wight
Hunger and degradation
The transformed Hollowgasts hunt peculiars in hopes of regaining their former selves. Those that consume enough peculiar flesh become Wights, able to pass as human.
A hierarchy of harm
Wights serve as spies and procurers for Hollowgasts, expanding the danger into ordinary society. The experiment produces not immortality but an organized system of predation.
Around the turn of the twentieth century
Summer of 1908
After the failed experiment