Explore the world of the Sanctum Sanctorum! When Spider-Man needs some cheering up, Ned and Mj take him on a field trip to the Sanctum Sanctorum. But when they arrive, it turns out that Doctor Strange isn't having the best day, either! Wong, Ned, and Mj are determined to turn things around. After a dance-off in the Undercroft and a little mischief in the Relic Room, Spidey and Doctor Strange realize that all they really needed to lift their spirits was a reminder of the magic of friendship. Brought to you by Calliope Glass and Andrew Kolb, this picture book features the same vibrant, stylized art and entertaining storytelling style as Spider-Man: Far From Home: Spider-Man Swings Through Europe! Complete your Marvel picture book collection with these best-selling fan favorites: Spider-Man: Far From Home: Spider-Man Swings Through Europe! Shang-Chi and the Legend of the Ten Rings: Who Guards My Sleep? Rocket and Groot picture books(Night Night, Groot, First Day of Groot!, Snow Day for Groot!, and Summer Adventure for Groot!)Captain Marvel: Beware the Flerken! Captain Marvel: What Makes a Hero Grow Up, Ant-Man! Spider-Man, Spider-Man!