21-3: Como sabrás: cf. note no habría andado, p. 8, 6.
21-4: cristino: see note Carlos e Isabel, p. 16, 3.
22-1: al salir el sol: at sunrise (el sol is the subject of salir).
22-2: veintiún: (for veinte y un.) Observe that uno in compounds is not pluralized and drops o before a noun. Other compounds are similarly formed, e.g. dieciseis, veintiseis.
23-1: tanto me conocía: knew me so well.