The Four Horsemen Universe
Five years from now, Earth was first contacted by representatives of the Trade Guild of the Galactic Union. Sol had been scouted for some time by a hyperspace shunt-equipped scout ship of the Cartography Guild and classified as “Pre-Industrial.” By the date of first contact, the Buma were looking for an untapped source of revenue and one of their scout ships detected a deep space probe and guessed Humanity was ripe for a profitable first contact. They rolled the dice and paid for the Cartography Guild to install a stargate and initiated contact. What they got…wasn’t what they expected.
The books of the Four Horsemen Universe in suggested reading order.