Cal

Write a very long, medically realistic BBC Casualty fanfiction in English, set during Series 31, centred on Caleb “Cal” Knight, Iain Dean and Jez Andrews. The central premise is: Cal joins Iain and Jez on an ambulance shift → a dangerous rescue suddenly goes wrong → Cal suffers severe neck and upper-chest trauma → his airway progressively closes → ordinary airway techniques fail → an emergency surgical airway has to be performed on scene → Cal remains conscious for much of the deterioration and understands exactly what is happening → Holby trauma care + Ethan/Cal hurt/comfort + later formal tracheostomy + prolonged recovery. Cal survives. Use the Series 31 characters naturally and preserve their canon relationships. MEDICAL CORE At the scene, Cal should require an emergency front-of-neck airway, specifically surgical cricothyrotomy, rather than an ordinary planned tracheostomy. Later, once he is stabilised in hospital, this may be revised or converted to a formal tracheostomy because of severe laryngeal trauma and prolonged airway swelling. The emergency airway must be a genuine last resort after oxygenation becomes impossible by safer means. Do not perform it simply because Cal is struggling to breathe. PART 1/9 - THE SHIFT Cal is riding with Iain and Jez for the day. Spend substantial time showing their normal dynamic before anything goes wrong. They bicker. Cal interferes with the ambulance radio. Jez makes fun of him. Iain tells him repeatedly not to touch things. Cal proves useful on several calls and clearly enjoys working outside the ED. Their friendship should feel established before the trauma. They are then called to an industrial accident involving a damaged structure, machinery and at least one trapped casualty. The environment is unstable, but the patient needs urgent help. Cal goes in with Iain and Jez. He takes a calculated clinical risk, not a stupid one. PART 2/9 - IMPACT During the rescue, part of the damaged structure sudde