Read by the author Two cassettes / 1 hour 38 mins. The Dragons are Singing Tonight Espousing the belief that "Poetry can be as detectable as chocolate chip cookies," Jack Prelutsky spends part of every year serving as an ambassador of poetry to school children throughout the world.   Monday's Troll A delightful collection of seventeen poems, in recital and song by the author, about such unsavory characters as witches, ogres, wizards, trolls, giants, a yeti, and seven grubby goblins.