I kept tropical tree frogs. This was Lazarus. I named him that because he disappeared for an entire summer. Summers get very hot in silicon valley, so I expected to find a mummified dried up dusty frog. One day I found him fresh as a daisy, alive and well, moist and everything, on top of the tank, several months later. I assume he lived in one of the nearby plants which I water, it's the only explanation.