At first, their artwork was pagan ... lived in a deep dark swamp nearby. Grendel returned whenever he felt like it, day or night. A young warrior named Beowulf hears of Hrothgar’s troubles ...

Postage stamps may be only a tiny canvas, but stamp art can have a lot of significance ... the Irish hero Fionn mac Cumhaill, while Beowulf fights Grendel from the epic Old English poem.