Doodleart NEW in tube ... old stock

awesome 2000s Era zombie edition of Doodle Art from the 70s. remember? birds? fish? butterflies? and now zombies. heavy duty paper, large poster size format. markers included - but please keep in mind, markers have a shelf life. the tube I just opened, today, (Feb 18) has most markers working great. but the yellow shows a powder? in the lid and seems dry. could it be brought back to life? maybe. all markers are double ended too...which helps. also not limited to markers. just a huge zombie coloring poster. you could use pencil crayons, crayons, paint, multimedia? totally awesome creative possibilities. I am using a highlighter yellow in the pictures. very therapeutic ? so far it's been great for me. :) the right kid (me) would do this for hours....like a babysitter in a tube. yours will be brand new.