The first in the Blaft Monographs on Cryptodiversity and Decoherence chapbook series. From the world's leading researcher in military echinodermology comes a short treatise about malevolent marine invertebrates and their diverse attempts at attacking and/or infiltrating Indian civilization. Episodes covered include the Brittle Star War on the Vijayanagar Empire in the early 16th century, the strange case of Raja Sukh Chand of Chhota Guler (who may have lived for ten years with a parasite slowly devouring his brain), and the hidden history of the crinoid-myzostomid battle during Subhash Chandra Bose's submarine transfer in the last years of World War II.
I think this is the best chapbook I've ever read. I have my biases though - medieval Indian history and marine biology - and this might be the only time I see those some together, and I'm going to savour every bit of it with endless re-reads of this 24-page "treatise."
Without giving away what's actually written inside, all I can say is that the manner in which it has been written is drop dead outstanding. (Also, the pseudonymous author will respond to you in the same outstanding style if you write to the publisher, which I think is a very nice touch.)