Call of Cthulhu: Reunion

It's 1926 in Singapore. Christ Church Secondary School is renowned for its art department and the impressive works students are able to produce, however as of 2 nights ago, it's also known as the site of a grizzly murder.

Mr Ho - the Math Teacher's body is round in a gory state with his heart in hand. As an investigator, it is your duty to get to the bottom of this crime and serve as security for a special high school reunion party happening later this evening.

What caused Mr Ho's death and the strange circumstances surrounding it?