The First Prince spoke through a blood-authorized wall before showing his face.
His voice entered the ancient royal channel without crossing the child's soul membrane.
"You spent two days frightening my patient with incompetent tests," he said as the prison needles held their cycle. "Step away before your ignorant concern destroys the only stable subject."
Didi rose beside the nullstone opening with four walls between herself plus one frightened child.
"A patient may leave treatment," she replied while frost remained beneath her nails. "Your prison walls kill this trapped girl whenever she attempts movement."
A protected gallery opened above the chamber after a preinstalled royal mechanism accepted the Prince's blood signature.
No stolen foundation key entered the gallery, redirected pressure, or returned from destruction.
The key destroyed in Chapter 377 remained broken evidence under sealed royal custody.
