Yes, Remus Lupin initially believed that Sirius Black had betrayed James and Lily Potter.
The Initial Conviction and Overwhelming Evidence
At the time of the tragic murders of James and Lily Potter, Remus Lupin, like the rest of the wizarding community, was convinced of Sirius Black's guilt. This belief was deeply rooted in the widely circulated narrative and the seemingly incontrovertible evidence that emerged in the immediate aftermath of the tragedy. For over a decade, Lupin harbored the painful conviction that his close friend had committed an unthinkable act of treason.
The Official Narrative that Shaped Lupin's Beliefs
The story presented to the public, and which Lupin accepted, painted a clear picture of Sirius Black as the traitor. This official account, supported by what appeared to be compelling evidence, led everyone to believe that Sirius was responsible for the Potters' demise.
| Aspect of the Official Story | Perceived Implication for Sirius Black |
|---|---|
| Secret Keeper Status | He was understood to be the Potters' Secret Keeper and the only one who could have revealed their location to Lord Voldemort. |
| Betrayal to Voldemort | It was believed he directly betrayed his friends to the Dark Lord. |
| Murder of Peter Pettigrew & Muggles | He was thought to have cornered and brutally murdered Peter Pettigrew along with twelve Muggles in a public street, cementing his image as a ruthless Death Eater. |
This devastating sequence of events, seemingly corroborated by official reports and the horrific scene left behind, shattered the trust Remus Lupin had placed in his friend. The lack of any alternative explanation for years only solidified this painful belief, turning friendship into profound sorrow and a sense of betrayal.
