Seleydeo

Bio
”Seleydeos are known for stretching up and down like a pogo stick. They are known to wake up other monsters when they are fast asleep. The rarely ever get a headache even though that whistling sound may not be liked by other monsters. Just like the Burian, they don’t make good friends either but both the Seleydeo and the Burian get along.”

Sound
Makes a slide whistle sound

Islands
school island