Shy and cautious, Hemi is the pragmatist of The Mystery Club. His mother, Pania, was a selkie who fell in love with Hemi's father, Tane, after he found and hid her cloak. However, a few years after Hemi was born, in the middle of the night, both his mother and her cloak disappeared and have never been seen again. Tane became very protective after that and so Hemi has grown up always being taught to be careful and to follow the rules. Among his friends, he is the most likely to make sure that everyone brought money for lunch and a jacket for if it gets cold. He is almost the exact opposite of his cousin Atamarie.

Trivia

-Hemi and his dad have a pet dog called Billy and a goat named Gruff. They also have a chicken coop. 

-While he knows how to swim, Hemi is afraid of the open ocean.

-Unknown to Hemi, hidden away by Tane, is a cloak of his own