眼镜蛇

眼 = 目 + 艮 : Inside of the anthill, Maud Younger played a prank on the Eye of Providence. She told it that she would apply a mask to alleviate the wrinkles around its eyes, but instead she just covered its whole eye with chewing gum.

镜 = 竟 + 钅 : Joan of Arc (ji) asks the mirror (镜) inside of the engine's bathroom ((e)ng4) what her fate will be. The mirror shows her a Jack in the box (竟) stabbing her with a golden harpoon (钅). Joan of Arc instantly realizes that this is an omen telling her to beware of the king of England.

蛇 = 它 + 虫 : Sherlock Holmes (sh) is investigating the death of a mosquito (虫) in the elevator's kitchen (e2). He took a blood sample from the mosquito and analyzes it with his computer (它). It turns out that the mosquito stung the venomous snake (蛇) which is sleeping across the hall, and the venom killed the mosquito.