Aiden

Aiden was a witcher from the Cat School and very good friend of Lambert from the School of Wolf. During the events of the Lamberts tell Geralt story about his friendship with Aiden and his ultimate death. He revealed that Aiden was murdered by another Cat Witcher known as Jad Karadin. Geralt then helped Lambert to track Karadin down.

To the surprise of both Wolf School Witchers, Karadin provides another version of the story depicting Aiden in a much less favourable fashion. Karadin claims that Aiden received payment for a contract yet did not fulfill it. His death was as a matter of fact an accident since Karadin was ordered to bring him alive.

However, this version of the story stays vague and can be rebuted due to various reasons.

1.) Lambert worked a considerable amount of time side by side wit Aiden, which lends his evaluation of Aiden as a professional witcher the most credibility. According to this, Aiden would have never left a contract unfulfilled or would have tried to cheat his clients.

2.) The sharpshooter Vienne and former member of Karadin´s gang states that the gang´s contracts consisted for a great deal out of killings, making Karadin´s version even more unbelievable.

3.) Lambert has information that Karadin himself dealt the finishing blow to Aiden and not Vienne, like the cat witcher claims. This means that one of the two versions is wrong, since Karadin´s version of events contradicts both Vienne´s and Lamber´s version.

4.) Lambert claims to have solid proof that Karadin, under his new pseudonym, is now active in the slave trade which can be taken as confirmed due to the up-to-dateness of when Lambert gathered this information.

4.) Karadin wrote a letter to Hammond, a former member of the gang, claiming to take no part in the slave trade, however, he mentions other possible traders in Novigrad. Since Karadin almost exlucively took contracts on killings shortly before Aiden died, it raises suspicion how Karadin can possibly know slave traders if he gave up his life as an assassin immediately after the death of Aiden. This implies that Karadin is active in the trade or at least has strong connections to other traders in Novigrad, making his version even less credible.

Due to these facts, it is relatively clear that Karadin´s version is not how the death of Aiden really took place and Lambert´s and Vienne´s information tends to be much more credible. Thus a decision has to be made wether Lambert should follow through with his revenge or wether Karadin should be spared despite the murder of Aiden. It is up to Geralt to decide weather he backs up Lambert in his vengeance or if he wants to take no part in it.

Regardless of the outcome, Aiden is described by Lambert as "the best guy I have ever known", meaning that despite the majority of Cat witchers showing strong sociopathic or psychopathic tendencies, there are still some honourable and professional members left from this school. Aiden