Lovespell from the Underworld is the nineteenth episode of the third season of the animated series, Martin Mystery. It was originally released on February 6, 2006.
Martin is reunited with his "first crush", Vivian Michelle, who embarrassed him during the grade school many times. Martin tries to avoid her, but when he finds out that Vivian has changed, he changes his mind about her. Diana suspects that Vivian is different due to her strange skin. Vivian is actually Venoso, a mutated chameleon-like monster who was the first monster Martin ever caught and also out for revenge with her cunning and sadistic nature.
- Venoso (Vivian Michelle)