The Adventures of Ruby Pi and the Math Girls

<p><span style=color: rgba(0 0 0 1)>Squinting through the rifle sight Casey takes careful aim at the thief on horseback half a mile away and receding fast. The thief has the deed to the family's new ranch. Will Casey's calculations hold true? </span><em style=color: rgba(0 0 0 1)>Only one bullet left.</em><span style=color: rgba(0 0 0 1)> Time to find out ...</span></p><p><span style=color: rgba(0 0 0 1)>Third Aunt is dying. The doctors from Uttarapatha charge exorbitant fees for their visit. Jayani heroine of Volumes of a Kiln makes a desperate set of new calculations to save Third Aunt's life. Will she find the solution in time? Will the villainous Al-Layth ibn Al-Saffar thwart her?</span></p><p><strong style=color: rgba(0 0 0 1)>A collection of adventure stories.</strong><span style=color: rgba(0 0 0 1)> Resourceful girls coming of age and changing history -- using mathematics.  </span></p><p><span style=color: rgba(0 0 0 1); background-color: rgba(255 255 255 1)>Rupa plays Sherlock Holmes when she looks into the mysterious death of one of England's (and India's) foremost mathematicians. Her investigation arouses powerful forces. Ruby finds Bayes Rule to be a most useful tool as she combats deadly danger and international intrigue. In the story's climax Rupa is ambushed on a foggy night on a London wharf ...</span></p><p><span style=color: rgba(0 0 0 1)>Math girl Uly takes the train to Moscow to collect an award for her work in Derivations. As usual her beautiful red-headed sister Sasha steals all of the attention. When the family arrives to stay with a professor cousin Uly becomes entranced with the Maya tablet the professor (Yuri Knosorov) is studying. Who will emerge when the ensuing code-breaking triggers fateful events for the family?</span></p><p><span style=color: rgba(0 0 0 1)>Brilliant ... </span><em style=color: rgba(0 0 0 1)>Julie Porter Bookworm Reviews</em></p><p><span style=color: rgba(0 0 0 1)>Wonderful reads ... an invaluable addition to any library. These stories </span></p><p><span style=color: rgba(0 0 0 1)>represent the missing link between math entertainment and education that young learners have long needed.</span></p><p><em style=color: rgba(0 0 0 1)>-- Diane Donovan Editor Bookwatch</em></p><p><span style=color: rgba(0 0 0 1)>We must teach mathematics from different points of view and different perspectives as Tom has done in this collection of stories.</span></p><p><em style=color: rgba(0 0 0 1)>-- Sandra Uve Author SuperMujeres SuperInventoras from her Foreword</em></p>