Monster City. The Riddle of the All-Knowing Sphinx

Tanya and Gon are used to life in Monster City: dragon supermarkets, concerts of mermaids, series about ogres. But their peace is disrupted by Nene, a modest trainee teacher, a sphinx. Where have all the school teachers gone? And most importantly: why does Nene never ask her students questions? She's a teacher! And a sphinx...

Illustrator Bea Tormo.