The moment Klaus' outstretched hand brushes the crystal, a burst of energy shoots into his body. Inexplicably, a leaf floats down and rests upon the back of his hand. It is green and hydrated, appearing freshly picked. When he looks over, he sees that Estraeah has also went for one of the green crystals.
The last thing he feels before losing consciousness is an overwhelming urge to run from the cave, back down its winding path and out into the forest once more. He does not feel himself hit the ground.