Ages 10–12 · supplemental area · all free
Reader Lab
For curious readers who like a question more than an answer. Read something thoughtful, break a code, untangle a logic puzzle, then write.
An extra space for older readers. These activities are free and untimed. Game progress lasts for this visit; download your writing if you want to keep it.
Reading shelf
Three starter picks
A small first shelf, not a full catalog. These free books also live in the Free Library under their usual age groups; here they come with questions for older readers. Read only.
Lab bench
Think it through
Crack four Caesar-cipher messages with a shift wheel.
Message 1 of 4
The hidden gate
- The hidden gate: current
- The explorer's trail: not started
- The observatory: not started
- The inventor's workshop: not started
A Caesar cipher encodes by moving every letter forward along the alphabet. To decode, move each letter the same number of places backward. Find the right number of places.
ORRN IRU WKH TXLHW FOXH
Top row: coded letter. Bottom row: what it becomes after moving back 0 places.
ORRN IRU WKH TXLHW FOXH
Need a pause between puzzles? The Calm Corner has slow breathing you can do in a minute.