The Missing HeirBook - 2011
Xena and Xander Holmes, an American brother and sister living in London, use clues from their ancestor Sherlock Holmes' casebook to help classmate Alice Banders, who goes missing following the announcement that she will be crowned queen of Borogovia after her thirteenth birthday.
Publisher: New York : Henry Holt, 2011
Edition: 1st ed
Characteristics: 172 p. ; 22 cm
Alternative Title: Cases: unsolved