(Bingo. Also, how many other minds are in Luna's body?)
Ethan
Ethan took a long stride forward, the spike digging deeper.

( no clue. Trying to think of how many would make it too many is hard.)
He hears her take a deep breath in
Wether from Pain or annoyance is unclear
" I was trained the same way as Luna. Do you think I will crank from Pain"

(I'd say five-maximum.)
Ethan
Ethan lunges at Lora, and latches onto her skull with four tentacles that came from nowhere.

( that wouldn't make any sense. Only 5 wouldn't drive her insane )
One second he is Holden something solid, the next he is Holding nothing
" you'll have to try harder than that"

(Just two fighting over control can lead to madness.)
Ethan
Ethan's face was slick and slimy, and his four tentacles were writhing as he looked at her, his eyes blank.

( but Luna would have control. My thoughts were that a group would start arguing, then others would join until everyone was arguing)
What stared back at him were two black dots in the white mist, then they were gone and he didn't have a hold of her any more
" can you tell me what mana is?"

"im fine just really tiered," she laughed sleeply

Ethan
"Something I have never cared about," Ethan hissed, his voice slimy and sibilant.

Lyra
"You're spending too much time asleep. There's something wrong," Lyra said.

"no im not," she whines