A more thorough explanation:

Octo tales (ok-toh tay-leez ortaylz) refers to stories or narratives that involve eight different characters or elements.

For example, a children's book about eight different animals going on an adventure together would be considered an octo tale. Another example could be a movie about eight different people from different backgrounds coming together to solve a mystery.

These examples illustrate the definition of octo tales because they both involve a group of eight characters or elements that work together towards a common goal or objective.