The Black Crystal (Fansadox Collection 601)

In Lord Kain's throne room, captured Amazon rebel Calliope and her sisters Svara and Vaja endure extreme sexual torture, with Calliope hiding the Black Crystal inside her body. After Kain extracts the crystal and forces chemicals on her, Calliope enters a feral, animalistic frenzy that overwhelms him, leading to the crystal shattering and destroying the fortress. Amid the ruins, a mysterious figure finds a surviving shard, while Calliope and her sisters regain consciousness in the wreckage.