Amazon.com has stopped selling Saga, Vol. 1, only days after its release, labeling the collection of the critically acclaimed sci-fi/fantasy series by Brian K. Vaughan and Fiona Staples as "under review." An Image Comics representative told Comic Book Resources the online retail giant hasn't explained why the book was pulled.

The generic "Item Under Review" label on the retailer's Saga listing states "it is not currently offered by Amazon.com because customers have told us there may be something wrong with our inventory of the item, the way we are shipping it, or the way it's described here." According to the Outhousers, there's been at least one report of an Amazon-shipped copy of the trade paperback being "'extremely wavy' due to heat warping."

As Image notes on its Twitter feed, Saga is still available through the Barnes & Noble website, and from direct-market stores. It can also be purchased from other sellers through Amazon.com.

Debuting in March, Saga follows two soldiers from opposite sides of an intergalactic war who fall in love and risk everything for their newborn daughter, in the process becoming fugitives on the run from their own governments.

We'll update when we know more.