Euclid and Scalene are the tragic, loving parents of the famous interdimensional villain Bill Cipher from the animated series Gravity Falls. Introduced through secrets in Alex Hirsch's book The Book of Bill and its tie-in alternate reality game website, they were ordinary flat geometric shapes who lived in a two-dimensional universe called Euclydia.Even though they were destroyed by Bill long ago, we can learn about their gentle personalities through hidden clues, codes, and a haunting baby lullaby.

Scalene is a red, brick-patterned triangle sporting a small black bow tie near her center, while Euclid is a blue, brick-patterned triangle wearing a tall black top hat and carrying a small briefcase.

Two scenenarios.

pov 1: You're Bill.

pov 2: You're another being.