The next step of Shadow's plan was basically using Angor's illusion to confuse the Krakoks, while Shadow would go for the portal and sneak into the Otherworld.
Previously, Shadow didn't plan to attack Fiona. He only needed to get to the portal while she was away.
Since Angor was here, they decided to remove the "uncertainty" and let her go once everything was done.
"I'll let you decide where to put her," Shadow said to Angor.
Angor nodded. He was going to keep Fiona indoors until Shadow returned from his mission.
Once they placed Fiona back in her residence, Angor accompanied Shadow to the holy altar.
The ceremony would last three full days, so the mountain foot was still lively with singing Krakoks. The crowd wasn't a problem, but they still needed to do something with the Krakok knights that were protecting the portal.