Green Lantern: The Howling Ring

After Hal Jordan and Sinestro were caught in a terrible storm, the Green Lantern ring was slipped off and is now in the grasp of Cromwell who decided to use it for revenge and his own gain. Meanwhile, Hal is help by Robyn and Mebh, and it's up to them to retrieve the ring, before Cromwell and Sinestro spark any trouble.