Izdahl’s concerns about the interactions between Armando and Dagmar grow in The Architect’s Guardian, Chapter 21. Here is an excerpt:
While he changed out of his suit, Izdahl watched Armando work, still bothered by their conversation. Then, he went to take his shower. As water cascaded down his body, he thought about his exchange with his lover, which had been surprisingly heated. He was unnerved by the quick rise of Armando’s anger. He wondered if moments of strife like this would occur. He was concerned that, somehow, Dagmar’s actions were designed to create conflict. He speculated that the Kelcho’s ultimate goal could be to separate him from Armando. He would do everything he could to stop that from happening. Armando meant too much to him.