Time Trip on a Moebius Strip

Time Trip on a Moebius Strip is a science fiction mystery novel about sixteen famous people of history who disappeared and are presumed dead. In the novel they all find themselves lost in another dimension. The main character is a marine biologist who enters this other dimension by way of a vehicle riding upon a Moebius strip inside of a giant nautilus shell. On meeting all of these lost people he learns each of them have been brought to this timeless domain by a cloud. Fourteen of them have also seen an angel in their lives.