List of Percy Jackson and the Olympians characters
Iris: The goddess of rainbows. She helps people deliver messages through Iris messages. Percy uses Iris messages a lot throughout the series by finding a rainbow and asking Iris to accept his offering. He then throws a golden drachma into the rainbow, says the name of the person he would like to contact and where the person is, and then he can see and talk to the person. Iris specializes in delivering messages through rainbows. She does not appear in the series but later on gets her own cabin at camp Half-Blood.