The plot either loops, or spirals into ...
(4) Reciprocating ... https://steemit.com/art/@sibr.hus/4-reciprocating
(3) Water movement ... https://steemit.com/art/@sibr.hus/3-water-movement
(2) First mud... https://steemit.com/art/@sibr.hus/2-first-mud
(1) Carte blanche... https://steemit.com/art/@sibr.hus/carte-blanche