High magic is the transcendent magic of the cosmos. Merriman is a lord of high magic, though he is beneath the Great Lord of high magic. The laws of high magic govern the other magics. The other less powerful magics can create spells of high magic. The greatest power of high magic is to banish things from time forever. The lesser magics can use this power by cutting the flower off the midsummers tree. Merriman, a lord of Dark whose identity is not specified, and King Arthur Pendragon guarded the Harp of Gold.
These same three seemed to make up a council of High Magic. The Lord of the Dark wore a pale blue cloak, King Arthur a sea- blue one, and Merriman a dark blue cloak.