Sure. 'The Lord of the Rings' by J. R. R. Tolkien has some elements that could be considered spy - like. Frodo is on a secret mission, trying to keep the One Ring hidden from Sauron, which is a bit like a spy operation in a grand fantasy world. Another classic is 'Alice's Adventures in Wonderland' where Alice is constantly exploring and uncovering the strange rules and secrets of Wonderland, somewhat like a spy in a very odd fantasy realm.
One classic is 'The Chronicles of Narnia' by C. S. Lewis. In these books, the children often have to act in secrecy and figure out the plans of the White Witch and other villains. They are sort of spies in the magical land of Narnia. Also, 'The Once and Future King' by T. H. White has some aspects of political intrigue and characters trying to outwit each other, much like in a spy story, but set in a fantasy world of King Arthur.
Chapter 391, "Seal The Core", is the clearest early answer because it turns Godsthorn's situation into a concrete plot event. The chapter gives readers a real answer by opening on Dean Godsthorn didn't flinch as Dean Veyra stepped out of the... and ending on They cleared it out in time." "You think they were stalling?" "Buying....
Chapter 519, "Provoking Them", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter turns that into something concrete by moving from The forest no longer felt calm. to He drove his fist so hard that his knuckles tore through bone and out.... What makes it stick is that the chapter closes with Because now, he was ready to hunt something stronger., which gives the main cast a stronger narrative position and pushes the technology upgrade onward.
Chapter 238, "Inside Of The Tree Hideout", is the clearest early answer because it turns Damien's situation into a concrete plot event. It opens with The inside the tree hideout was damp and the scent of unwashed bodies... and closes on Get up, scum," one barked at a young boy who had collapsed in.... The key payoff is that the chapter closes with "Have fun." Damien smirked.
Chapter 237, "The Summons' Massacre", is the clearest early answer because the violence around Cerbe becomes final instead of hypothetical. The setup is The air was thick with the stench of blood and fear., but the pressure keeps building through The forest, once alive with the sounds of nature, had been replaced....
Chapter 132, "Leaving The Forest of Twin Disasters", is the clearest early answer because it turns Keith's situation into a concrete plot event. The chapter gives readers a real answer by opening on The three sat around the campfire, its warm glow casting flickering... and ending on You distracted the Drake?" she asked, narrowing her eyes.. In story terms, the chapter closes with Damien nodded, his expression unreadable. As the fire continued to crackle, he felt a small sense of relief.
Chapter 120, "A Wrong Decision II", is the clearest early answer because it turns Keith's situation into a concrete plot event. The chapter turns that into something concrete by moving from Keith and Narna struggled against the overwhelming pressure crushing... to Keith spun around to face Narna, his frustration boiling over..
Chapter 149, "Your Last Meal IV", is the clearest early answer because it turns Damien's situation into a concrete plot event. It opens with The cavern echoed with growls, roars, and the deafening sounds of... and closes on The wolf leapt high, its massive jaws locking onto the demon's arm.. The key payoff is that the chapter closes with Damien looked toward the tunnel where the humans had escaped.
Chapter 214, "Testing The Others", is the clearest early answer because it turns Damien's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The demons will come at you all of you don't go to them." Damien... and follows through with Since we're done here, let's get moving." Damien began walking..
Chapter 500, ", Alliance 400 Worlds", is the clearest early answer because a shaky connection becomes usable in the plot. Early on, The Alliance Government did even better than Gu Hang had imagined.. By the end, Under normal circumstances, this would not be easy to achieve..
Chapter 141, "Demon Infestation Mission II", is the clearest early answer because it turns Damien's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Damien moved into the shadowy recess of an alley, checking for any... and follows through with Please, die!" he said, charging into the fray..