There was nothing more than dead fish-people. No hint of their attackers, nor belongs.

"Well, the last rites are... I'm afraid far too late to conduct by now." R'Lyeh sighed as he knelt by one of the putrid bodies. "I am afraid the decay rate for my People is highly accelerated upon leaving the water, due to biological factors far too disrespectful to my fallen companions here to discuss without their input on the matter. S'Phurzah here was one of the best of my colleagues to conduct cadaver studies with and has spent hours examining up those who had sacrificed their life for the pursuit of knowledge. Rest well my old friend, I am deeply sorry that it has come to this."

The S'Augwin do not shed tears for their fallen, as it would be impossible to do so given their habitat. Yet here R'Lyeh was genuinely touched by the death of his associates, although it was not very common for a researcher to lose objectivity, this was far more personal.

"Custom dictates that the dead are to be eaten by the living upon dying, such that the Augwin be pleased with the cycle of life energies propagating forward to an unknown endpoint. However given the state of decay, there is nothing we can do to uphold this tradition without risk of malady." Yes, it was a strange ritual, pseudo-religious but far more scientifically practical in not letting energy to waste and cause heat entropy. 

"If we cannot find a source of water proper to let their bodies decay in, I suppose my friends would not be too concerned about partaking in a terrestrial equivalent. I have heard it is customary to place the dead within an earth-covered pit? They would be honored to become amongst the first of our race to experience such. And I am afraid I am far too physically drained to be of any use until a good rest, any more travel may just exhaust my reserve of water I had allocated for respiratory purposes. I should limit my activities from this point on, perhaps I can analyze our potions? I believe one is a standard healing unguent, but the other..."