Can YOU Solve the Mystery of Room Zero?
Become part of the mystery! Watch carefully, search for clues, and talk through your theories with a grown-up.
Watch on YouTube ↗Watch, wonder, solve and learn together. Explore family-friendly mysteries and free printable challenges for curious kids ages 5–9.
Brains First. Bytes Second.
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Become part of the mystery! Watch carefully, search for clues, and talk through your theories with a grown-up.
Watch on YouTube ↗Six mysteries help children practice asking questions, checking sources and explaining their thinking. Includes a parent discussion guide.

Ages 5–9 · Six-page printable · Parent-guided
Download free activity ↓These are two separate adventures, connected by the same skill: curious, careful thinking.
Discover new AI safety, kindness and critical-thinking activities with Marcus & Byte. Parents can join the Marcus & Byte Club for updates.
Explore Marcus & Byte Studios ↗For parents and guardians. Free activities do not require an email address.