This is me. My name is Woof Canis and I'm the best detective in the world.... and also one with two left feet. She is Minnie Felina: martial arts specialist, co-worker... and enemy! Who would ever think to put a cat and a dog together?

A message in a block of ice is asking for help from the North Pole. Apparently, a group of ghosts is larking about in a scientific research station studying aurora borealis. Some penguins claim they have seen a polar unicorn, but only Minu and I can uncover the secret behind this story.