Over at goHastings, search “elf on the shelf.” Various are showing $29.95, but then drop to $17.97 when you add to your cart! Shipping is $.96 on your entire book order, making these just $18.93 shipped. Ones I see for this price: Light Girl, Light Boy. Put aside for next year! 
(Thanks, All Those Things I Love)
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Is this JUST th book?? Or is the Elf in there too?? My kids want one for next year so I haven’t got one before…
Huh — their description is terrible. The “boy” one is showing the big box the elf comes in, the price matches, and both have “activity includes story and elf” stickers but it doesn’t specifically say as on Amazon. OK, I put the EAN into Amazon and it’s coming up with the book + elf — try 9780984365173 for instance.