(the hollow earth has been proven to be real, evolved prehistoric creatures like lavallosaurs, red allasaur like creatures with one large crest that sleep in hot springs and eat creatures that ddrink from them and live in them like lavaplurea, crustaceans that live in the hot springs, and lavachiosaurs, sauropod creatures that range from the size of a titan, creatures that hit a size limit that counts them as titans, like tremorzilla, a godzilla version of the tremorsaur, and luxtructosaurus , a lava brachiosaur with big crystal spiked forelimbs, and spiky crystals on the neck and back, a lava patterned droopy dewlap, and can breathe fire, there are crested alpha raptors that call other raptors in the pack, they are called vallumraptors, giant centipedes that are fast and carnivores, tapejarid like creatures called subtteranodons, and atlatitans, smaller versions of the lava brachiosaur, crustaceans found in the lakes of the hollow earth, trilocaris, therozinosaur like creatures called Relicheirus, trike like dinos called grottoceratops, and tremosaurs, rex like dinos, and lastly in the primordial caves both the ceratosaur and t rex. but there are other caves like the toxic caves, deepslate caves filled with lakes of acidic liquids, that house radgills, raycats, and gammaroaches, along with the tremorzilla, any creature that grows large will turn to a titan. then the abyssal chasm, a fllooded place that houses a leviathan called the hullbreaker, along with tripod fish, gossamer worm, lantern fish, then the forlorn hollows, that house a sentient race of rats, and corrodents, long rat creatures, vespers, blind giant bats, and forsakens, bat creatures that have secondary set of arms instead of wings, and also have gloomoths. describe your character(name, gender, age, appearance, etc), be a dino or a human of the hoi(hollow earth institute) as a guard, scientist, etc, add your own monsters, or bne your own monster.)