H.P. Lovecraft 
At the Mountains of Madness [EPUB ebook] 

In ‘At the Mountains of Madness’, an Antarctic expedition led by Professor Dyer uncovers the ruins of a forgotten civilization older than humanity itself. As they explore the eerie, ancient city, they unravel terrifying secrets about the Elder Things, the monstrous Shoggoths, and the dark history of the cosmos. Madness and horror consume those who dare to gaze into the abyss of forbidden knowledge.