Why does Antinous call for a fast ship and twenty men?

In book 2 of
, Telemachus sets sail on his own swift ship with a hearty crew, as he
longs to find any information pertaining to the whereabouts of his long-absent father. Despite
the fact that all the other survivors of the Trojan War returned years prior, Odysseus has
remained away, and no news of him has reached the shores of his home in Ithaca. The war ended
nearly ten years ago, and still Odysseus does not return. Suitors who pursue his wife, Penelope,
have been camped at his palace for several years now, abusing the Ancient Greek rules of
hospitality and attempting to force her to marry one of them. She will not, and she devises
ruses and reasons to delay the new marriage that begins to seem more and more inevitable if
Odysseus does not return soon.

In book 4, Antinous and the other suitors
learn what Telemachus has done, and they are eager to prevent him from returning with news about
Odysseus that would give Penelope more reason to continue denying their demand that she remarry.
Antinous prays that Zeus will kill Telemachus before he reaches manhoodhe is just about twenty
years old nowand he tells the others to "'fetch [him] a swift ship and twenty men'" so
that he can ambush Telemachus as the young man attempts to return to
Ithaca.