Denis Markell has writ­ten all sorts of things, from sit­coms to off-Broad­way musi­cals, but noth­ing has giv­en him as much enjoy­ment or sat­is­fac­tion as writ­ing nov­els for kids – the puz­zle-packed mys­tery Click Here to Start and the Dun­geons & Drag­ons-inspired adven­ture The Game Mas­ters of Gar­den Place. He lives in Brook­lyn with his wife, illus­tra­tor Melis­sa Iwai, and his son, Jamie. Although their apart­ment is not haunt­ed, they sus­pect their Shi­ba Inu pup­py, Nik­ki, might be demon­i­cal­ly pos­sessed. You can find Denis on Twit­ter at @DenisMarkell, and yes, he’d be hap­py to do a Skype author vis­it for your kid’s class.