You only have until June 4, 2023 to grab these 11 books $0.99 each:
Star Trek: A Contest of Principles
Star Trek: Deep Space Nine: Mission Gamma Book 1: Twilight
Star Trek: Deep Space Nine: Mission Gamma Book 2: This Gray Spirit
Star Trek: Deep Space Nine: Mission Gamma Book 3: Cathedral
Star Trek: Deep Space Nine: Mission Gamma Book 4: Lesser Evil
Star Trek: Discovery: The Enterprise War
Star Trek: Discovery: Wonderlands
Star Trek: Ex Machina
Star Trek: Into Darkness
Star Trek: The Next Generation: Shadows Have Offended
Star Trek: The Next Generation: The Buried Age
