Grundo

Ambrose Temple, called Grundo, is a character in The Merlin Conspiracy. He is a gruff, eccentric young boy who lives in the King's Progress, the travelling Court of Blest, because his mother Sybil is a Court enchantress. He has an older sister, Alicia, but he long ago adopted Roddy Hyde as his preferred older sister. Grundo is dyslexic - which affects the way he does magic, as well - but very bright.

See also The Merlin Conspiracy (spoilers).