Yes. The Evoke
Talent specifies that the
Unit is summoned on the
Path Hex closest to Ybanthe, which does not necessarily have to be
Adjacent or valid. If the
Hex is invalid, for example the
Path being summoned on has no connection to the Grovetender's
Mark, the summoned
Minion will follow the rules for invalid hexes found on page 10 of the rules reference. Note that this is different from a Muskeg
Spire, which specifically calls out a
Valid Hex in the text for Wallop.