Lal takes the scrap of cloth - "this is important", nods to Amina and returns to the main camp and lends his considerable strength to the task of pulling the Hydra out of the oasis. He also uses his ring to assist the swimmers.
Whe he has the time, he confers with the others. "Amina found a body nearby, dead about 3 weeks ago. Human, middle aged, clearly as desert dweller who had stopped here to rest. He died of a heavy slashing weapon - a talwar maybe. Interestingly, his back was scortched as if he had been attacked by a fiery spell. We know that this hydra breathed fire, but the other wounds don't match, so I am thinking a spellcaster was involved. Someone burried him, but missed this"
Lal presents the scrap of rust-red cloth
"This doesn't match the rest of his clothing, and I believe he took it from his attacker. Are there not spells that would allow you to use this scrap of cloth to trace back the rest of the garment where this originated?"
"His sword was gone, so perhaps the same could be done with his scabbard. He did bear a dagger with the word "Sarraf" on it... "