Find the Key...

Otherwise known as Tuesday's Brain Bender. On the handy dandy discount MENSA calendar they have this whole deal in a circle with the missing "key" letter (that is the same for each word) in the center.

That format won't work here, so I am going to list the jumbled letters with a (?) added to signify the missing letter. All Set? Okay... Here we go!

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Unscramble the letters listed below and find the missing letter that completes each word. (The missing letter, indicated by the question mark, is the same for each word.)

A - N - D - P - E - ?

S - S - E - C - E - ?

S - I - A - ?

T - E - A - R - ?

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Okay, you know how it goes.... Answers to be found later in the comments.

Update: Today's winner gets a super extra big smartypants sticker! jvh from Showcase of a Shattered Mind found not one solution, but three! Honorable mention goes to VW from One Happy Dog Speaks for coming oh so close to yet another correct answer. Whoohoo! Oh and jvh? Here's your sticker......

















Oh! And "X" was the "official" correct answer....