Less than a month ago Marvel tried giving away more than 700 first issues of its comic library digitally on ComiXology but the overwhelming amount of fans caused the ComiXology servers to crash. Marvel is back with the same offer and will be giving away more than 700 #1 issues of its comics through its digital service.

In order to avoid the servers crashing again, Marvel is taking a different approach this time around by sending out invitations to the downloads in batches. All you have to do is head over to ComiXology’s website to sign up before midnight tomorrow ET. Invitations will start rolling out on April 11 with instructions on how to download more comics than you’ll know what to do with.

You’ll be able to read the comics anywhere, whether it’s on your computer or your favorite mobile device.

#1 issues don’t always tell full stories, but they usually have some of the best artists and writers in comics doing their best work, so if you’re a comic book fan, this is something definitely worth checking out, especially since, you know, it’s free.