The Storage Backpack is a magical bag that lets you store pieces you want to hold on to.
The Backpack button is in the bottom left of the screen. Tapping on it will open or close the Backpack, letting you see the pieces inside while it is open.
To put pieces into the Backpack, drag them onto the Backpack icon, or into the open Backpack inventory screen.
To remove pieces from the Backpack, drag them from the open Backpack inventory screen out onto your island.
Most pieces can go in the Backpack. A few exceptions exist, for example Mines are too large to fit! You also can't store a partially used Red Gnome.
When first unlocked, the Backpack has space to hold three pieces.
As you play on Home Island and Paradise Cove, you'll find bags; these bags can be merged together to eventually create a Magic Backpack, which can be used to permanently add another space to your Backpack.
Home Island and Paradise Cove each have a different and separate Backpack. Items in one can’t be seen or taken out from the other. Remember, if you have items you want to exchange between Home Island and Paradise Cove, you can use Sinbad’s Ship for that!
As they’re separate, in order to make sure you’re expanding the Backpack on the island you want to. If you use a Magic Backpack on Home Island, the Home Island Backpack gets more space. If you use it on Paradise Cove, the Backpack there gets more space. You can use Sinbad’s Ship to send it between islands if you need to.