The seventh son of a seventh son has great Magyk abilties. They are extremely rare, but often they can perform Magyk naturally. For example, Septimus Heap could become UnSeen and fly on his first attempts. Being 7th son of a 7th son means one shall have great magykal abilities.
Septimus Heap is currently the only known seventh son of seventh son.
Behind the scenes
- "The seventh son of a seventh son" is an existing real-world concept in the form of being folklores of many countries.