When a museum's prized Egyptian mummy disappears just before the grand opening of a new exhibit, four clever kids—Dink, Josh, Ruth Rose, and their friend Sammi—must solve the mystery. Using their sharp observation skills and teamwork, they follow clues around the museum, decipher secret messages, and uncover a surprising culprit. This fast-paced adventure shows that even young detectives can crack a big case when they work together and pay attention to details.