"You look like a fish."
Lord Grimwald has the ability to control the seas, and is a descendant of Petrello. Grimwald is an enemy of Cook. After she refused to marry him, he killed her fiance and parents, though he appears not to recognise her when they briefly meet in the sixth book. Lord Grimwald has greyish skin and looks a bit like a fish, and has long white hair and cold aquarmarine eyes. He never wanted a child, but he married a merwoman, and his son's name is Dagbert Endless. Dagbert has many other names, but they chose on the surname "Endless" because "his names are as endless as the ocean". He is killed in the 8th book.