You’ve encountered a pack of echo sharks. This counts as a common creature encounter for the purposes of levelling, but does not count as a Random Event for levelling or MP. There will be no further admin/re intervention. If you choose to follow this creature, you do so at your own risk, however, just having it in this thread is enough to satisfy your levelling requirements.
Echo Shark (common) - A dwarf species of shark known for hunting in packs, the Echo Shark can live in both freshwater and saltwater. They are able to mimic any sound they’ve heard and band together to increase their range of vocals. The sharks use the words and sounds they’ve learned to lure unsuspecting prey into the water, where the sharks will then leap up and drag them into the waves.