Unsinkable Walker Bean

"Walker Bean never wanted to be a high-seas pirate waging a pitched battle against the forces of the deep. It just worked out that way. Mild, meek, and a little geeky, Walker is always happiest in his grandfather's workshop, messing around with his inventions. But when his beloved grandfather is struck by an ancient curse, it falls on Walker to return an accursed pearl skull to the witches who created it - and his path is strewn with pirates, magical machines, ancient lore, and deadly peril!"