Although Herlbe proclaimed his goal loudly and with much certainty that he would eventually get the job done, the truth was that he truly had no clue how to tackle the problem that was Pangea'Kalst, the long-legged crab was no random beast, even if not in possession of enough awareness to be called sapient, he was a serious problem, large enough to be mixed up with a continent and carrying a thriving ecosystem of life upon his back, capable of nourishing countless plants with his life force without even meaning to.
Herlbe definitely couldn't consider his job done with such a living still around.
Not to mention that Pangea'Kalst was also nearly constantly meeting up with females of his species, none were even nearly as large as he was so who know how that worked, but it did as the amount of offsprings of his scouring the okean was simply extravagant, but even when carrying his blood, none seemed to hold the capability to grow as immense as him for some reason.