After vanquishing the Nightmare I first came across, I set off in one direction.
Because I had no food or water, I had to move as fast as possible until I found some kind of civilisation in this Otherworld.
However, I also needed to minimise energy consumption as much as possible, so I only walked forward, eradicating all the Nightmares that suddenly appeared in my way.
As I went, I tried experimenting with my evolved power, which I dubbed the Measurement of Reality.
Truth was gone, but his essence remained, and with this new power I felt that I could achieve limitless, unfathomable things.
Currently, perhaps as a result of using artificial means to evolve Truth, the extent of what I could do was limited and there was still much I had yet to figure out about its many intricacies.
With time and practice, my strength will improve and my capabilities will grow.