The Guide Mark II was the second, more powerful version of The Hitchhiker's Guide to the Galaxy created by Infinidim Enterprises for the Vogons to finish their job of destroying the Earth once and for all.
The Vogons only had to create one, as it was omnipresent, existing across all dimensions and at every point in time and space. It used a process called Reverse Temporal Engineering to trigger a series of seemingly random events to cause a desired outcome in the present, and to this end, it destroyed every version of Earth in every universe. The Mark II had infallible prescient deduction abilities due to the omniscience and precognition that came with its omnipresence, as well as the ability to multiply, grow or shrink its physical avatar(s) and communicate mentally.
The Guide Mark II appeared in: