Clarification on a few things

[Puck]

Hola! I just need some clarification on a few things

First up (Telepathy) ESP specifically

1 stone to read surface thoughts,+1 stone to go undetected, +1stone for deeper thoughts +1 stone for multiple targets.

Now does this mean that you pay these in additional to what your putting in to get through targets mental defenses. Example

4 into telepathy to read target A and target B's deep thoughts, going undetected. Does this mean its 4 to get past the pairs defenses and do the ESP or is this 4 in addition to the stones to overcome mental defense?

[Jet]

Just overcoming mental defense is enough to read surface thoughts, anything else counts towards whateber resistance your GM wants you to overcome to get into deeper thoughts.
Im not sure where you got those other notes, but I dont see any rules for staying undetected and hitting multiple targets in core books. For all I know the only way to hit more then one target with mind reading is by either dividing stones between every target (which requires crapton of stones) or using Area Effect.

[Silentking Alpha]

It is very easy to miss those extra stuff. They are in the main book right in the description for Telepathy. Right before it lists the options.