Dr Walid retains scans and samples of damaged brains.

Hyperthaumaturgical degradation
(shortened HTD) is a term used by Dr Walid to explain what happens to the human brain after being exposed to magic for a very long time.[1] Tony Harden died of HTD.[2]

The next stage is hyperthaumaturgical necrosis.[3] Antonin Bobet suffered from that.[4]


  1. Moon Over Soho
  2. Detective Stories #1
  3. Whispers Under Ground
  4. The Home Crowd Advantage