Several shiploads of English longbowmen meet an alien civilisation, and are pressganged into service as captive soldiers. Weber portrays the attitudes and thoughts of the period perfectly, and displays his usual command of military history, even in the fields of archery and cavalry, rather than his usual forte of naval combat. Both the main part of The Excalibur Alternative and the distinct ending section are well written and evocative, and the only problem is that the whole book begs for a sequel, which doesn't seem to even be on the horizon yet.