Can bankruptcy law offer debt relief to third parties who are not involved in a formal procedure themselves? This question is explored both in relation to guarantees and in relation to mass tort liability and has been a main topic of controversy recently in the US, arising in cases such as Purdue Pharma and the opioid crisis. Taken together, the answer to these questions will be decisive in the future scope of bankruptcy law and its relation to other fields of law. In their reports written for NACIIL, leading US and European scholars guide you through these questions.