Dav Ito (they/them) quoted Iron Flame by Rebecca Yarros (The Empyrean, #2)
“The first year is when some of us lose our lives. The second year is …
Content warning Is it a spoiler? I don't know!
What the hell do they do with a bonded rider who doesn’t pass?” Rhiannon asks quietly. Every member of my squad looks at me. “I have no clue.”
— Iron Flame by Rebecca Yarros (The Empyrean, #2) (10%)
I suspect those who fail the class don't do anything... because a failing grade probably is death.