Zelos was the one who sent the 17 Specters to Athena’s Sanctuary by the order of Wyvern Rhadamanthys. He acted as the messenger of the events in the Sanctuary to Rhadamanthys, even though he questioned Wyvern’s decision due to Pandora’s wrath. As the revived Gold Saints came to Hades castle with Athena’s body, Zelos was there to greet them. The Gold Saints disregarded him and Aquarius Camus pushed him aside with his cold winds. Thus, when the revived Saints lay dying on the floor due to their time limit, the Specter took out his frustration on Camus. This would prove not in his favor as Cygnus Hyōga and the other Bronze Saints burst through the ceiling. With his own cold blast, the Cygnus Saint hastily killed the Frog Specter.
The Frog Specter in the 18th century :