The Girl in the Bunker was published in the UK in July 2011. It is now out of print, though you can find second-hand copies online. A new e-book edition came out in mid-2015, available in many countries. In September 2015, Cargo was acquired by Freight, and the rights to the book have not yet been determined.
REVIEWS/BEST OF LISTS
Scotland on Sunday‘s Books of the Year, November 2011: The Girl in the Bunker was selected by Willie Rennie, leader of the Scottish Liberal Democrats
The Scottish Review of Books, November 2011 (vol. 8 no. 1): ‘an original idea executed with care and assuredness’…’Rosenberg gives an excellent account of a confused young girl’s perspective’. (Lesley McDowell)
The Big Issue, August 1-7 2011 (no. 847), 4 stars: ‘gripping family-based thriller’…’written with a keen instinct for a hook but also plenty of depth, it’s a fascinating look at the mentality prevalent in the last days of Nazi Germany’. (Doug Johnstone)
Otherwise you can always check Bookfinder, which usually seems to have some copies.
The Institute of Historical Research published my brief essay on historical research: Researching the Nazis: The Girl in the Bunker
I’m more than happy to come speak to your group. I’ve done events in the Netherlands, France, and Scotland, so even if you’re fairly far afield, please get in touch!