Under Water by Casey Barrett Kensington Publishing Corp., $25.00, 309 pages, ISBN 978-1-4697-0968-4 The MBR is ever on the lookout for debut authors with arresting characters, compelling plots and above-average wordsmithing talent.  When we find one, we do our best to alert all of you, so that together, we can read and enjoy the writer and character as they grow.  Those types of people are hard to find, and