The construction of Freudenthal's Magic Square, which contains the exceptional simple Lie algebras of types F 4 , E 6 , E 7 and E 8 , in terms of symmetric composition algebras is further developed here. The para-Hurwitz algebras, which form a subclass of the symmetric composition algebras, will be defined, in the split case, in terms of the natural two dimensional module for the simple Lie algebra sl 2 . As a consequence, it will be shown how all the Lie algebras in Freudenthal's Magic Square can be constructed, in a unified way, using copies of sl 2 and of its natural module.