The demons weren't as cold-blooded and heartless as the books described.
On the contrary, they were quite friendly. Illiya figured that if Eoryun had simply asked Ke'Oth and N'zall directly whether he could meet with the Ice Flower in private, there was a good chance they would have agreed on the spot.
First, he had spent several days on edge, painstakingly waiting for the opportunity to carry out his plan.
And in the end, without realizing it at all, he was tailed by a whole group of people driven purely by curiosity.
Should one say he was overly confident, or simply overthinking things?
Either way, it was pretty entertaining.
As he pondered all of this, Illiya's walking pace gradually slowed, eventually falling behind the main group and ending up at the very rear of the party.
With slow, unhurried steps like an old man out on a countryside stroll, he looked every bit like someone out enjoying a leisurely outing.