AU off of episode 4.14 "The Curse". What if the Isis jar had been intact and had been opened first? Oneshot ficlet.
Isis had been furious when Ra had forced her into stasis; she was no less furious when she awoke. Shaking off the effects of the sedative she was immersed in, the darkness around her abruptly turned painfully light when the lid of her jar was finally lifted. She burst forth, screeching her indignation at the situation. In their natural form, goa'uld did not see particularly well but in this case, Isis could see quite well enough; there was a human, a female human right in front of her. Not pausing to check further, Isis launched herself at her target.
Subduing her new host was harder than Isis expected; the creature was stronger in mind and will than the well indoctrinated slaves she was used to. But it did not matter; Isis was still far stronger and she walled out the creature's hysterics with the ease of long practice. Isis stretched slowly – oh, it was good to be free again. Looking down at the table where her jar had been, she was pleased to see a second jar. Checking it with great care, she smiled. Yes, Osiris was still with her. The jar was still intact, her lord was still alive.
She glanced around and frowned. This room was very strange – she assessed it for a moment and then reached into her host's memories. She was alternately amused and shocked as she assimilated the information. These humans – this planet had been left alone for far too long. They had forgotten their gods. For a moment, rage flooded her system. "How dare they?" she whispered, clenching her hands until her nails drew blood from her palms. Looking down at the blood, she swore she would see this travesty of a world brought back into line.
Still… it would be a lot to do on her own. She needed her lord – her brother, her husband, and he would need a new host as well. Pacing as she thought, she decided she was pleased with the host she had… perhaps in her host's memories, she could find the right candidate for Osiris. Skimming those memories, she considered and then considered again. A few minutes was all it took and she had her choice. She could use this world's telephone to summon him. Her host had his number – she cared for him, even though she had pushed him away. Stupid, short-sighted humans! Isis picked up the phone and dialed the number. "Daniel? Daniel Jackson? It's Sarah Gardner."