RICHARD HAGEN MYSTERY SERIES
THE TOY SHOP ............................................ 1981
THE WATCHER ............................................. 1982
THE THIRD STORY ......................................... 1983
THE HIDING PLACE ........................................ 1984
THE ALICE FACTOR ........................................ 1991
THE ROLLY SERIES (YOUNG ADULT NOVELS)
THE TREE-FORT WAR ....................................... 1976
THEFT OF GOLD ........................................... 1980
DANGER ON THE RIVER ..................................... 1982
SPIES FOR DINNER ........................................ 1984
MURDER IN THE MARKET .................................... 1985