L. Frank Baum,
Dorothy and the Wizard in Oz — Chapter 7…
(1908)
“ Dorothy hopped inside the opening to escape being pricked, and Zeb and the Wizard, after enduring a few stabs from the thorns, were glad to follow her. At once the Mangaboos began piling up the rocks of glass again, and as the little man realized that they were all about to be entombed in the mountain he said to the children:"My dears, what shall we do? Jump out and fight?" ”
