The True Ending  

"Where's El'athal's body?" Ren asked.

"Don't worry. He'd be transported together with us in the material plane."

When the curse ends, all nearby creatures and objects not native to the Shadowmire return to the Material Plane, including Aimon and El'athal's cairn and body underneath it.

As colors returned to the world, Ren was briefly disoriented before everything came into focus. It was clear that he was back in Verdant Woods. Everything seemed the same as when he left, except that now the cairn Aimon built for El'athal was here – and that Amilia was standing next to it.

Ren ignored her, and his eyes went to Aimon. He was still alive, and the shadows disappeared from him, and he fell to the ground, barely conscious upon their arrival.

No longer a shade. He had only one hit point left. Ren was surprised that he was still alive even though his neck was cut. He then healed him with the potions he brewed, just to make sure that he would be alive until the end.