Rainbow Bridge, on Whale-Nation St. in the City of Ov, is an all-encompassing Therapy/Self-Discovery Centre. Simon and Zoë work in different capacities there. Zoë is one of the practitioners. Simon is general messenger man.
Rainbow Bridge is such a dysfunctional institution, even its signboard outside is mis-spelt. For this reason, it is referred to as Raibnow B.idg. in the pages of the book.