The Brave and the Bold book one
In 2250 it is discovered that four deadly artefacts from the Zalkat Union have been scattered in different worlds. An order to inform Command is issued if any should be located. Years later, the first and second energy emitting weapons, spreading disease and destruction, have been found. Through combined efforts, the only ones who may be able to prevent disease and havoc are the Captains and crews of the Enterprise, Constellation, Odyssey, and Deep Space Nine.