For as long as he could remember, Harry had dreamed of climbing a stairway to the Moon.
One night, Harry dreamed that he took an enormous sheet of paper of normal thickness (0.1 mm) and he folded it in half, then in half again, and then again, and again, and again, and he kept folding it over on itself until with one last fold it was so thick that it reached the Moon. Putting on his spacesuit, Harry began to climb, but long before he reached the Moon....he woke up.
Recalling his dream later, Harry was quite surprised at how many times he needed to fold the paper to build his stairway, and maybe you will be too.
If you enter the number into the certitude link below, you will be rewarded with the location of BOTH a small magnetic nano-cache AND another container dangling on a thread. If you find the logbook is full in one container, try and find the second container and sign the logbook there.
Good luck!
W (a.k.a. DidianRay)
You can validate your puzzle solution with certitude.