Catch
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Lady Lion Star completed the Roland campaign in the first Royal Games on the Portal in 52 days.
She also completed Island of Magic in 66 days.
Descendants was completed by Sir Navuchodonosor in 63 days.
Road Home was completed by Sirs Nzol and Hell Executioner in 29 days.
The Price of Loyalty was completed by Sirs Pash and Hell Executioner in 86 days.
These are the records for HeroesPortal. I think the first two results are likely to be absolute records as well.