I am looking for a child's picture book with a girl, ocean liner, and a seagull. There is an ocean liner on the cover. It's contemporary to the 1960s. Thanks!
Dim memories, 30+-year-old book; very dark illustrations, about a young boy who lives with his uncle or grandfather and his tall and sort of shady assistant/mad scientist. They build a boat/ark, there is a huge storm, and they wind up shipwrecked in a zoo.