Riggu Felis

Riggu Felis was a wildcat warlord who ruled on Green Isle and lived in a huge wooden fortress. He had a wife, Lady Kaltag, and two sons, Jeefra and Pitru. He was supported by an army of wildcats, who kept the native otters of the area as slaves. His life long aide was the pine marten Atunra.

In battle with the great osprey Pandion Piketalon, Riggu had part of his face torn away by the bird's talons, leaving exposed bone and fangs beneath. After this major injury, Riggu was forced to wear a half-mask made of chainmail, disguising this grotesque wound. Though he managed to stick a star-shaped iron barb into Pandion's mouth, Riggu did not easily forget what the hawk did to him that day, and has his eye on revenge.

Returning to the fortress, Riggu encounters trouble several times with Leatho Shellhound, a rebellious otter who leads his fellow otters in several battles. In one, Riggu's son Jeefra appears to drown, but in reality he has been killed by his brother Pitru. Through a series of strategic battles, Riggu eventually gains the upper hand and captures Leatho. He is thrown into a cage in his fortress.

Eventually Leatho escapes with the help of Pandion, but soon after his new hiding place is set ablaze by Lady Kaltag, driven mad at the death of her son. Pandion and Brantalis Skyfurrow, another bird, are sent to rescue him by Tiria Wildlough.

They carry Leatho down but Riggu, fighting a battle with the otters below, recognizes Pandion and throws his axe at him. Pandion falls to the ground, dead. Tiria, who has sworn to pay back the beast who put the iron barb in Pandion's mouth with his own weapon, loads the iron star onto her sling and fires it straight at Riggu. It hits him dead-center between the eyes. He dies with the star embedded in his brain, falling headfirst off the pier into the lake. It is later mentioned that his body was thrown onto the the burning remains of the fortress along with his catguards.