Gears of a Mad God Omnibus by Brent Nichols
Get all three books in the classic Steampunk/Lovecraft trilogy in one money-saving volume.
Gears of a Mad God - Proper young ladies in the 1920s don't get dirty, and they certainly don't get into fights. But Colleen's favorite uncle has died under mysterious circumstances, and she wants answers. When a sinister cult comes after her, she pushes back - hard.
Dark Island - What is Tanathos, and why will a mysterious cult kill to find it? Armed with the remnant of a burned map, Colleen Garman is in the Dutch East Indies, trying to solve the mystery of Tanathos. But the South Pacific in the 1920s is a dangerous place, and the cult is hot on her heels.
Hell's Gate - A devastating raid by the cult of Katharis leaves Colleen Garman alone, faced with a formidable task. The world itself hangs in the balance as the cult opens a portal to another realm. Colleen's duty is plain - she must close the portal at any cost, and keep it closed. But her old friend Carter is trapped on the other side. To get him back she will have to risk everything.