OoC:No, you can't Take 20, as it states that there can't be a penalty for failure: PH pg 65.There is, ahem, a Penalty for Failure...
The Hobgoblin will wake after 10 minutes or so.A Cure spell would hasten that as well. Turlough Disabling normally <Dm rolls with a sinister grin on his face,...>
IC
Turlugh studies the Glyph long and hard, noting every detail of the mark, as well as the surrounding door and frame. After a few minutes, he taes up his tools and makesa go of it.
<Result 26, apparent success>
Te magical trap seems to have ben bypassed.
Meanwhile, the Hobgobling comes around, and lays in a heap upon the floor, trussed and helpless. Defiantly silent, he looks from one of the Dwarves to another and glares back at you all.