Amazon offers Prime members the Thomas and Friends My Red Railway Book Box Set for $4.79 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $4.98. Alternatively, you can bag free shipping if your order includes $25 of books or more.) That's a buck below last week's mention and the lowest total price we've seen. (It's the best deal today by $4.) This set includes four board books in a box with a Velcro closure.