Fifth Shiver was an ancient and powerful shiver composed of the prehistores, the giant, prehistoric dwellers, and some ancient sharkkind. The former ruler, King Drinnok, fell into Hokuu's trap and was overpowered by the frills and jurassics. Fifth Shiver was destroyed when Hokuu killed Drinnok and Grimkahn led Sixth Shiver.


-Some of the more noticeable dwellers in Fifth Shiver were mosasaurs, pliosaurs, plesiosaurs, and a giant turtle.