For works of this author written under other names, search also under: Andrews, Opal  Cleve, John  Crebb, Jeremy  Dedeaux, P. N.  Denis, John  Marshall, Alan (Pseudonym)  Morehead, Jeff  Williams, J. X.  Winter, Turk  For works of this author written in collaboration with D. Bruce Berry, search also under: Douglas, Jeff (Pseudonym)