To celebrate the start of Comic-Con tomorrow in San Diego, Marvel is kicking off a promotion that provides an all-you-can-have pass to its entire digital library for less than a dollar. There are a few caveats, as expected, but not enough to make the offer seem any less attractive. According to Wired, Marvel Unlimited, which is home to more than 13,000 comics, can be accessed over the next week with a simple payment of 99 cents. The deal will only give you an in to the service for one month, but the renowned publisher is hoping that's plenty of time to keep you locked in beyond said period.For reference, Marvel Unlimited is usually $10 per month or $69 per year, and there's also a $99 yearly subscription with access to some exclusive tidbits. It's worth noting that this isn't the first time Marvel has run a promo like this, as it did something similar a few months ago during SXSW. And don't worry if you're not seeing the 99-cent option on the site -- it should be showing up shortly.