For a long time, the effects of this spell were largely unknown. Only one Sorcerer, a Necromancer from Throben, ever managed to cast it successfully, and he was never seen again afterwards. The Necromancer's notes were later found, but did not reveal the purpose of the spell.
The spell was originally designed in Mampang Fortress by the sorcerer-priests of Chronada, god of time. A Minimite stole the secret and, after that race dispersed, traded it to the necromancer in Throben who attempted to cast the spell.
Use in the Sorcery! series Edit
The option for the player to cast this spell appears in the final Sorcery! book, The Crown of Kings. When The Analander is imprisoned alongside the Jann the Minimite, the player is given the option to attempt to cast a spell. But as in the earlier encounter with Jann in The Shamutanti Hills, the player learns that in the presence of a Minimite, most magic is neutralised and will not be effective.
However, when the option to cast ZED is selected, the player discovers that the spell is so powerful that even the presence of the Minimite cannot negate its effects. Jann elaborates by saying that the spell allows the caster to travel through time and space itself, but requires perfect concentration or it will work randomly. By casting this spell, the player is able to travel back in time to before being captured by the Archmage of Mampang and thus defeat him and retrieve the Crown of Kings. Unfortunately, the magical power released results in the death of Jann.