What is the fine-grained topic of the following text: He happened to be snooping around when a certain item (an apparently ordinary desk, that just happened to have killed one previous examiner of it...) arrived from the mission of the Veracian Church in Kiyoka for study, in the laboratory of fellow Sashi Mu prof Revyl Dirienzal. Only return the topic.
Examining a dangerous desk from the Veracian Church in Kiyoka at Sashi Mu Laboratory