Summary:

Boom Broom thinks his life can’t get any worse. Ever since his mother was swept away by a twister,his father has locked himself in the attic,leaving 12 year old Boom to care for his little sister Mertyle.Low on money, Boom brings home a feisty,seaweed covered fish from the reject seafood bucket by the docks.But when he puts it on the table, he and Mertyle find that their supper is actually a living,breathing, foul temepered  merbaby. Boom wants to use the creature to get rich but Mertlye  won’t accept it. She loves the mud scented baby and wants to keep it for herself. But when they do not return the baby to it’s ocean home, strange things begin to happen and Boom is afraid they might be cursed! With the help of their Viking house keeper, Halvor.Boom and Halvor must find the merbaby’s home or Mertyle will never see the light of day……..

Half me,half summary on the book