If you die you don't lose your stuff you merely lose the ores you've mined from Charm Furnace (That's what I named it doesn't have to be title that lol) and you wake up in the puppy pin with OSRS gold (in case you left your dog with the Pet store owner) your puppy slobbering on your face or (if you did not leave your dog with the Pet store owner) some random dog pulling at your leg with sharp teeth.
Other player may strike you in some specific regions from the Charm Furnace whenever they or another dragon-rock fall kills you they can take Charm ores you fall and if you are carrying any time the charms its self.... Whatever you gain in the cavern could be lost (apart from things from arbitrary events) but everything that you earn can't be lost in the Mini Game.
You cannot bring a dog, cat, monkey or a comfortable or recognizable pouch to the cavern the strain from the other measurement is too much due to their character. The reason why you cant bring a dog, cat, monkey down there is because they can get hurt easily, the lizards which are not dragons can evade falling rocks and conceal easily upon your individual away from the monsters, along with Buy old school rs gold the dragons, well nothing really can damage that monster.... The birds can fly away from the rocks and monsters no problem...please be aware that if you attract the allowed pets you can't lose them through passing in the Mini Game.