Acheron & Styxx: House of Didymos

Created by Sherrilyn McQueen

Acheron & Styxx took the world by storm. Now, fifteen years later, the immortal twins are united for the first time into a single set.

Latest Updates from Our Project:

Bouncing Emails & Pledges
over 1 year ago – Sat, Jun 25, 2022 at 06:54:01 AM

Hello everyone. Thank you to all those who have contacted us to complete your Backerkit Surveys for your Kickstarter pledges. We are still waiting on several hundred backers to complete their survey to provide your mailing address and email address to complete the fulfillment of your pledge when the time comes. Even if your credit card has been charged, you must verify your pledge in the survey. If you started the survey, but did not complete it, your pledge can’t be fulfilled.

We have 9 backers who emails are bouncing, we have no way of contacting you. Your pledges will eventually be cancelled (refunded) and we will NOT be able to reinstate them.

If you are one of those with the Apple Relay id situation, please email us with your name, backer # and an email address to reach you.

If your credit card failed to charge in Kickstarter, you still have time to correct the information by filling out the Backerkit survey.

We will be closing the Backerkit PreOrder store at the end of July: All new orders placed will have the credit cards charged then. We must close it so we can get a final count on what we need to fulfill the pledges next year. We can’t start production until we have the final totals.

If you need to check your survey or if you haven't received one, please visit:

As before, please send all questions to [email protected]. We don’t want personal information posted on FB or Kickstarter. 


Apple IDs & missing surveys
over 1 year ago – Tue, Jun 21, 2022 at 05:33:32 AM

Acheron/Styxx kickstarter

It's come to our attention that there's a problem with those who created Kickstarter accounts with Apple IDs. They are not able to get the emails they need in order to complete their surveys (it's also possible that your survey might be in your Spam folders). If you created your account with the Apple ID, you  will need to manage your Apple login credentials via the Apple ID  settings on your mobile device, or from your Apple account. There you will be able to turn off email forwarding (if you are  using the relay email address), change your forwarding address, or stop  using your Apple ID within an app.

If that doesn't work or you're missing the survey, please go here to recover it. 

You can also go to that site if your pledge was dropped and/or you wish to preorder. 

If your pledge went through and you wish to add items, please use your survey to do that. 

If all else fails, please email your name, Kickstarter Backer # and the email address you want to use to [email protected] and we will update it for you and re-send your survey email.



Surveys are heading to backers
over 1 year ago – Sat, Jun 18, 2022 at 08:53:05 PM

The surveys are going out to all backers. If you were a backer and had a problem with your pledge, you will be able to fix it on the survey. You will also be able to add new items. You'll also need to add your address (for those who have pledges that require shipping). Please make sure you fill out your survey and return it to us as soon as possible.
For those who missed the campaign (or who had trouble with their payments) and are interested in purchasing the Acheron/Styxx combination anniversary edition (or the 5th volume), you can now do so on this PREORDER page. Please note that the preorder page is only for those who didn't back the campaign or who had trouble with their payments. 

If you backed the campaign and wish to add items, please wait on the survey and order new items through the survey.
If you have any questions about the incomplete pledges, please email us: [email protected].
For those asking about the slipcases, we don't have that information yet. We're waiting to hear back from the printing company for an estimate. We'll let you know as soon as we know something.First, let us say a huge and heartfelt thank you to all our backers! Thanks to you, the campaign was a huge and resounding success!

Thanks again to all our wonderful backers!

Kim, Jake, Madaug, Hinako, Carl, Kate & company

Preorders & Surveys
over 1 year ago – Fri, Jun 17, 2022 at 08:20:48 PM

Again, thank you to everyone who came together to make this a success! We so appreciate all of you!

A number of backers have reached out to let us know that they missed the payment deadline, and a few others are asking if they can pledge now that the campaign is over. The answer to both is YES!

If you look at the image below, you'll see that the page now contains an orange button. In the next few days, we'll be sending out the survey (we have to perform a smoke test with a few backers to make sure it's working properly) and we'll have the preorder page up and running then.

Anyone who had a pledge mix-up or who wishes to join the campaign, renew a lost pledge, or place a first time order will be able to do so on the preorder page. 

Please note that we can only run preorders for a few weeks before we have to close them and make a final order. So anyone who wishes to order, please be ready. We will give plenty of notice before we close the preorders, but we did want everyone to know that they won't be open until the release of the books. We have to have a final count in to the printer and we're awaiting their cut-off date to get the books in print and in the hands of all the waiting backers. That will be the cut-off date for placing new orders/preorders. 

We are so thrilled to be able to bring this to readers! Y'all are the absolute best!

Kim, Jake, Hinako, Madaug & crew! 

over 1 year ago – Sat, Jun 11, 2022 at 08:41:39 PM

According to Kickstarter, there are still a few more payment issues from backers to be resolved. Once Kickstarter has finished collecting pledges, which we are told could take up to fourteen days from the close of the campaign (June 17), then we will send out the survey from Backerkit. Hopefully, those payment issues will be resolved quicker and we can move on to the next phase.

We know everyone is anxious to get their surveys and we're anxious to send them out, but we have to have all the backers finalized before we can proceed with that as we don't want to do duplicate mailings.

Those who are now noticing that their pledges aren't correct, don't worry. You will have a chance to order anything that is missing once the survey goes out and we have the preorder page in place. All items from the campaign will be there, so you'll be able to order whatever additional products you're missing or that you wanted. We'll keep the preorder page open as long as we can, but it will have to be closed once we go into production as we don't want to sell more than we produce. We don't know the exact date yet when it'll be closed, but we will give everyone as much notice as we can prior to closing down the preorder site.

So please bear with us as Kickstarter collects the last pledges and finalizes their part. Then we'll be in the hands of Backerkit.


Kim & Jake