In "The Blood of Olympus" by Rick Riordan, a tense moment arises when one character, Nico, expresses frustration towards Clovis. He implores Clovis to halt his intense dreaming, suggesting that his vivid imagination or dreams are causing issues. The urgency in Nico's voice indicates a serious situation that requires Clovis to focus and maintain control. This interaction highlights the challenges faced by the characters as they navigate their difficult circumstances. The mention of "the gods' sake" captures the blend of myth and urgency, illustrating the high stakes they are experiencing. Ultimately, it showcases the dynamics between the characters and the underlying tension that propels the narrative forward.