most of the dead dwarves were buried already along with the pets, but it seems there are still some bodies left, that or i have lost another one, which seems to be the most logical, a new goblin siege has started, this time it seems i got to put all the dorfs in, i have also built my trade depot in the outside, dont want to repeat the same issue with the elves, im still gathering the stuff left by the caravan, for now the main concern is to keep the dorfs alive inside the fortress until this siege ends, im still trying to find a way to channel water into the underground, dont want to rely in the caverns for that, dont have the military to deal with cavern dwellers nor i have it to deal with a goblin army. for now the dorfs are fine living with booze only. but the rotten food and the miasma will soon catch up i guess.
EDIT: looks like the fort has enough booze and food to keep the dorfs alive for several years, taking advantage of the plethora of underground flora that has made home in the halls i start to gather more plants just in case, and start to carve an artificial cavern for the future space of grazing animals, watersources and fungiwood farms. i've also expanded the prospection in search of tetrahedrite, with good results.
EDIT2: the artificial cave is practically finished i'll expand it a bit more later, the main focus now is in carving an artificial pond, as i have found an acuifer, based from the several ponds around the fortress, the idea is to channel the water from one hole and let the underground lake to fill itself, the water will always be clean as the ponds are connected with the river. this should finish the water problem, and i dont expect any nasty critter to come through it
EDIT3: there was no acuifer but i just perforated the floor of the pond, the water is being drained directly to the underground lake via a small waterfall and its filling really quick. also, a dorf was possesed, i hope it doesnt get a bad end