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Pen i Waered: 4. Cyfrinachau - Cyfrinach Lob/Codau

Pris arferol £4.95
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Helen Emanuel Davies

Mae Rhif 4 yng nghyfres Pen i Waered yn delio â chyfrinachau o bob math. Mae'r stori, wedi'i darlunio gan Robin Lawrie, yn trafod yr Ail Ryfel Byd, a'r ochr ffeithiol yn trafod codau, fel y Peiriant Enigma, côd Morse a llythyron hynod iawn.

The fourth book in the Pen i Waered series looks at all kinds of secrets. The story, illustrated by Robin Lawrie, is about the Second World War. The factual side looks at different codes, the Enigma machine, Morse code and some remarkable letters.