Bundle Deals

Start with a 3-book binge

Not ready for a huge commitment? Begin with a curated three-book bundle and get a real feel for the world, the heroine, and the addictive pull of the series.

The Calla Cress Decrypter Books 1–3 bundle is the perfect thriller entry point. It opens with hidden manuscripts, accelerates into mind-level cyber danger, and deepens into political espionage and high-stakes codebreaking. It is built for readers who want a satisfying binge without stopping after one book. The bundle page on your store positions these first three books as a non-stop, globe-spanning thriller experience led by Calla Cress, a museum curator turned elite codebreaker.

Start with a 3-Book Bundle

Bundle Deals

For the reader who already knows they like to binge

Go straight for the full obsession

Some readers do not want a taste. They want the whole experience.

The Calla Cress Decrypter Books 1–7 bundle is the ultimate choice for thriller readers who want to fully disappear into a series. This is your all-in bundle: seven books, one brilliant heroine, and a world of cryptic clues, ancient secrets, espionage, danger, and relentless momentum. Your store already frames this as a seven-book Decrypter bundle and lists it as one of the core products in the bundle collections.

This is for readers who love the feeling of finding a series they can truly live inside.

Get the 7-Book Bundle

Bundle Deals

For the reader who is already hooked

Keep the adrenaline going

Already inside the series? Do not stop the momentum.

Your bundle collections also offer deeper progression points for established readers, including Books 4–6, 7–9, 10–12, 13–15, and 16–18, along with larger arc bundles like 1–6, 7–12, and 13–18. That means readers can binge by phase, by arc, or by era of the series, depending on how they like to read.

Continue the Series

Choose your format

How delivery works

Digital (ebooks & audiobooks)

Delivered by email within minutes via BookFunnel. If your link doesn’t arrive within 10 minutes, check spam/promotions, then email info@silvergravitybooks.com and we’ll resend it.

Print (paperback & hardback)

We try to be a non-waste company and our books are printed on order within 24 hours. Books are printed on demand and shipped via Bookvault (fulfilled from the UK or US depending on format/location). Typical delivery: UK 7–10 working days; US & International 10–15 working days. Tracking link provided after dispatch.