Bjorn was returning from toilet to his room just to witness someone dressed like commissar drop out of 1892 E with delicate case of missing head. Ignoring the headless fellow he approached 1892 F doors and noticed note pinned to his door with magnetic seal. From someone named Zajcev. Promptly ignoring note he took magnetic seal and checked it for traces of explosives or homing devices.
"I was looking for one of theese for few days now. Well, lucky find for me."
He said silently more to himself than headless fellow, and went on into office.