In "The Sword of Summer" by Rick Riordan, the character Sam invites Thor to join them in an important battle against formidable foes like Surt and Fenris Wolf. Highlighting the urgency of the situation, Sam expresses how crucial Thor's presence would be, given the stakes involved.
However, Thor declines the invitation with a twitch of his eye, indicating his hidden frustration. Marvin humorously clarifies that Thor has another commitment: a game of Thrones, showcasing the blend of mythology and contemporary references that defines the narrative.